<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2022 Workiva-->
<!--r:49431b48-1dd7-4ef2-9e18-b2ddf16b4c62,g:d8023a0f-5ce6-4c9e-8f5f-9e1793cd09c5-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.suncommunities.com/role/ConsolidatedBalanceSheets" xlink:type="simple" xlink:href="sui-20220630.xsd#ConsolidatedBalanceSheets"/>
  <link:calculationLink xlink:role="http://www.suncommunities.com/role/ConsolidatedBalanceSheets" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_50be92c0-c81d-4354-9729-24ffde651d28" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_308b56c2-8ca9-41d1-b762-bf294635c308" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_Liabilities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_50be92c0-c81d-4354-9729-24ffde651d28" xlink:to="loc_us-gaap_Liabilities_308b56c2-8ca9-41d1-b762-bf294635c308" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_sui_TemporaryEquity_6acceb61-437d-425f-8a2b-d02ade5696c5" xlink:href="sui-20220630.xsd#sui_TemporaryEquity"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_50be92c0-c81d-4354-9729-24ffde651d28" xlink:to="loc_sui_TemporaryEquity_6acceb61-437d-425f-8a2b-d02ade5696c5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_fd41a6b9-bc88-4065-8db9-4f9e1b57969d" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_50be92c0-c81d-4354-9729-24ffde651d28" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_fd41a6b9-bc88-4065-8db9-4f9e1b57969d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateInvestmentPropertyNet_b099d54e-cabb-46eb-b001-74009d8441f1" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RealEstateInvestmentPropertyNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateInvestmentPropertyAtCost_732e3a6c-ceaf-4ff1-a629-697b5bdff5da" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RealEstateInvestmentPropertyAtCost"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_RealEstateInvestmentPropertyNet_b099d54e-cabb-46eb-b001-74009d8441f1" xlink:to="loc_us-gaap_RealEstateInvestmentPropertyAtCost_732e3a6c-ceaf-4ff1-a629-697b5bdff5da" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateInvestmentPropertyAccumulatedDepreciation_7666dff9-e4f7-46b7-8739-1d72214206b2" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RealEstateInvestmentPropertyAccumulatedDepreciation"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_RealEstateInvestmentPropertyNet_b099d54e-cabb-46eb-b001-74009d8441f1" xlink:to="loc_us-gaap_RealEstateInvestmentPropertyAccumulatedDepreciation_7666dff9-e4f7-46b7-8739-1d72214206b2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_6b54d6d4-f6b8-4a8c-9fbc-5b2061463e37" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_Liabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebt_103dd404-de60-4578-b6cf-e8be1d8f5971" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SecuredDebt"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_6b54d6d4-f6b8-4a8c-9fbc-5b2061463e37" xlink:to="loc_us-gaap_SecuredDebt_103dd404-de60-4578-b6cf-e8be1d8f5971" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsPayableCurrentAndNoncurrent_a0f1983b-4a85-477c-bc05-1ba6266bfa18" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DividendsPayableCurrentAndNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_6b54d6d4-f6b8-4a8c-9fbc-5b2061463e37" xlink:to="loc_us-gaap_DividendsPayableCurrentAndNoncurrent_a0f1983b-4a85-477c-bc05-1ba6266bfa18" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiability_3f10d8c6-f9c3-4b35-8ae4-fded16bb98ea" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ContractWithCustomerLiability"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_6b54d6d4-f6b8-4a8c-9fbc-5b2061463e37" xlink:to="loc_us-gaap_ContractWithCustomerLiability_3f10d8c6-f9c3-4b35-8ae4-fded16bb98ea" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilities_f85742f8-b101-4047-8742-5babb54ee5c3" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherLiabilities"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_6b54d6d4-f6b8-4a8c-9fbc-5b2061463e37" xlink:to="loc_us-gaap_OtherLiabilities_f85742f8-b101-4047-8742-5babb54ee5c3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnsecuredDebt_c05deaed-8447-42a7-9f08-c3064617b968" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_UnsecuredDebt"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_6b54d6d4-f6b8-4a8c-9fbc-5b2061463e37" xlink:to="loc_us-gaap_UnsecuredDebt_c05deaed-8447-42a7-9f08-c3064617b968" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrentAndNoncurrent_f9ef59c9-8348-41f8-acd1-7e9c930f37e5" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AccountsPayableCurrentAndNoncurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_6b54d6d4-f6b8-4a8c-9fbc-5b2061463e37" xlink:to="loc_us-gaap_AccountsPayableCurrentAndNoncurrent_f9ef59c9-8348-41f8-acd1-7e9c930f37e5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_c00fdd24-eacc-46c1-8900-12cf2360a942" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_0e35bbb8-a430-4f24-a980-f2907dede77e" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommonStockValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_c00fdd24-eacc-46c1-8900-12cf2360a942" xlink:to="loc_us-gaap_CommonStockValue_0e35bbb8-a430-4f24-a980-f2907dede77e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapital_fe531384-901d-40f7-b160-070bcc29c843" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AdditionalPaidInCapital"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_c00fdd24-eacc-46c1-8900-12cf2360a942" xlink:to="loc_us-gaap_AdditionalPaidInCapital_fe531384-901d-40f7-b160-070bcc29c843" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_6dc2fb98-ef61-4c49-b8c6-60306167b58c" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_c00fdd24-eacc-46c1-8900-12cf2360a942" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_6dc2fb98-ef61-4c49-b8c6-60306167b58c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDistributionsInExcessOfNetIncome_3e06d656-4bf5-4415-af60-8de79d57f441" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AccumulatedDistributionsInExcessOfNetIncome"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_c00fdd24-eacc-46c1-8900-12cf2360a942" xlink:to="loc_us-gaap_AccumulatedDistributionsInExcessOfNetIncome_3e06d656-4bf5-4415-af60-8de79d57f441" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_654a9d8b-dc58-47b9-a829-f8cc1b0cc0e6" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterest_69883b5d-e44a-430c-b79b-45094d874994" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_MinorityInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_654a9d8b-dc58-47b9-a829-f8cc1b0cc0e6" xlink:to="loc_us-gaap_MinorityInterest_69883b5d-e44a-430c-b79b-45094d874994" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_35fc5905-4b71-4d12-93b9-51d5b4879c35" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StockholdersEquity"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_654a9d8b-dc58-47b9-a829-f8cc1b0cc0e6" xlink:to="loc_us-gaap_StockholdersEquity_35fc5905-4b71-4d12-93b9-51d5b4879c35" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterest_65630f15-dbe6-4f09-b973-a11817852135" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_MinorityInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterestInOperatingPartnerships_9469a15f-feda-4f09-9c50-74397bee5f31" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_MinorityInterestInOperatingPartnerships"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_MinorityInterest_65630f15-dbe6-4f09-b973-a11817852135" xlink:to="loc_us-gaap_MinorityInterestInOperatingPartnerships_9469a15f-feda-4f09-9c50-74397bee5f31" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoncontrollingInterestInVariableInterestEntity_b6fdc18a-f2f1-479f-9116-a365f08521dd" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NoncontrollingInterestInVariableInterestEntity"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_MinorityInterest_65630f15-dbe6-4f09-b973-a11817852135" xlink:to="loc_us-gaap_NoncontrollingInterestInVariableInterestEntity_b6fdc18a-f2f1-479f-9116-a365f08521dd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_8b0ae8db-374f-4e06-8c04-ce9827dd783c" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateInvestmentPropertyNet_c2f99ddb-1bd7-40f1-936a-34e27da02f03" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RealEstateInvestmentPropertyNet"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_8b0ae8db-374f-4e06-8c04-ce9827dd783c" xlink:to="loc_us-gaap_RealEstateInvestmentPropertyNet_c2f99ddb-1bd7-40f1-936a-34e27da02f03" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MarketableSecurities_0fd8c9a3-12dd-4798-b141-6db836487743" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_MarketableSecurities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_8b0ae8db-374f-4e06-8c04-ce9827dd783c" xlink:to="loc_us-gaap_MarketableSecurities_0fd8c9a3-12dd-4798-b141-6db836487743" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryFinishedHomes_b16ecc3f-8b2a-448b-89da-96c6dce70fb0" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InventoryFinishedHomes"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_8b0ae8db-374f-4e06-8c04-ce9827dd783c" xlink:to="loc_us-gaap_InventoryFinishedHomes_b16ecc3f-8b2a-448b-89da-96c6dce70fb0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsAndNotesReceivableNet_e9ac17e2-cb81-4a77-9b5a-3733cc5940f5" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AccountsAndNotesReceivableNet"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_8b0ae8db-374f-4e06-8c04-ce9827dd783c" xlink:to="loc_us-gaap_AccountsAndNotesReceivableNet_e9ac17e2-cb81-4a77-9b5a-3733cc5940f5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssets_9b97b5ab-f0f2-444a-b216-eeea921b6cf1" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherAssets"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_8b0ae8db-374f-4e06-8c04-ce9827dd783c" xlink:to="loc_us-gaap_OtherAssets_9b97b5ab-f0f2-444a-b216-eeea921b6cf1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_d04b8e8d-7c44-444b-bc29-9703d2e07278" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_8b0ae8db-374f-4e06-8c04-ce9827dd783c" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_d04b8e8d-7c44-444b-bc29-9703d2e07278" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetIncludingGoodwill_9dd58448-d2b2-4646-aaf4-012105ba60c8" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IntangibleAssetsNetIncludingGoodwill"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_8b0ae8db-374f-4e06-8c04-ce9827dd783c" xlink:to="loc_us-gaap_IntangibleAssetsNetIncludingGoodwill_9dd58448-d2b2-4646-aaf4-012105ba60c8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_sui_GoodwillAsset_c1d9dd75-5d99-4383-a8a5-b0059c46114c" xlink:href="sui-20220630.xsd#sui_GoodwillAsset"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_8b0ae8db-374f-4e06-8c04-ce9827dd783c" xlink:to="loc_sui_GoodwillAsset_c1d9dd75-5d99-4383-a8a5-b0059c46114c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateInvestmentPropertyAtCost_b5df6bac-99dd-4043-9476-b2f7ddacd70f" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RealEstateInvestmentPropertyAtCost"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Land_739aeffb-485e-4271-8f14-4639f0d8df58" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_Land"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_RealEstateInvestmentPropertyAtCost_b5df6bac-99dd-4043-9476-b2f7ddacd70f" xlink:to="loc_us-gaap_Land_739aeffb-485e-4271-8f14-4639f0d8df58" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_sui_RealEstateInvestmentPropertyLandImprovementsAndBuildings_25b71698-391d-4f20-9fa4-26d81ef8a3c4" xlink:href="sui-20220630.xsd#sui_RealEstateInvestmentPropertyLandImprovementsAndBuildings"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_RealEstateInvestmentPropertyAtCost_b5df6bac-99dd-4043-9476-b2f7ddacd70f" xlink:to="loc_sui_RealEstateInvestmentPropertyLandImprovementsAndBuildings_25b71698-391d-4f20-9fa4-26d81ef8a3c4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RentalProperties_ba56fcb6-e096-44ea-844f-cb1174e57c9c" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RentalProperties"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_RealEstateInvestmentPropertyAtCost_b5df6bac-99dd-4043-9476-b2f7ddacd70f" xlink:to="loc_us-gaap_RentalProperties_ba56fcb6-e096-44ea-844f-cb1174e57c9c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FurnitureAndFixturesGross_5f2ff84f-992c-4f7d-aedd-c79a94fc1e69" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FurnitureAndFixturesGross"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_RealEstateInvestmentPropertyAtCost_b5df6bac-99dd-4043-9476-b2f7ddacd70f" xlink:to="loc_us-gaap_FurnitureAndFixturesGross_5f2ff84f-992c-4f7d-aedd-c79a94fc1e69" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.suncommunities.com/role/ConsolidatedStatementsOfOperations" xlink:type="simple" xlink:href="sui-20220630.xsd#ConsolidatedStatementsOfOperations"/>
  <link:calculationLink xlink:role="http://www.suncommunities.com/role/ConsolidatedStatementsOfOperations" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_6df19f63-a619-443e-bc0b-656b7ff748a0" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_7568db90-625f-41df-8938-c7e733da1de0" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_6df19f63-a619-443e-bc0b-656b7ff748a0" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_7568db90-625f-41df-8938-c7e733da1de0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_sui_PreferredreturntoSeriesA1preferredOPunits_34f6956b-b40f-4cc0-841a-d16840e3f9cc" xlink:href="sui-20220630.xsd#sui_PreferredreturntoSeriesA1preferredOPunits"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_6df19f63-a619-443e-bc0b-656b7ff748a0" xlink:to="loc_sui_PreferredreturntoSeriesA1preferredOPunits_34f6956b-b40f-4cc0-841a-d16840e3f9cc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_ec99c595-eb63-4f9d-8da8-9bea3f92785a" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_6df19f63-a619-443e-bc0b-656b7ff748a0" xlink:to="loc_us-gaap_ProfitLoss_ec99c595-eb63-4f9d-8da8-9bea3f92785a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostsAndExpenses_0bd68531-c222-49ef-aef0-e8f350044522" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CostsAndExpenses"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfOtherPropertyOperatingExpense_898fb4e9-9f69-4327-a58d-49f19c4b765b" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CostOfOtherPropertyOperatingExpense"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_0bd68531-c222-49ef-aef0-e8f350044522" xlink:to="loc_us-gaap_CostOfOtherPropertyOperatingExpense_898fb4e9-9f69-4327-a58d-49f19c4b765b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateTaxExpense_dabfbc1d-5e46-495a-a8c3-0c734b0473a4" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RealEstateTaxExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_0bd68531-c222-49ef-aef0-e8f350044522" xlink:to="loc_us-gaap_RealEstateTaxExpense_dabfbc1d-5e46-495a-a8c3-0c734b0473a4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCostOfOperatingRevenue_900c38c7-16d9-432e-866b-9d788631a8ec" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherCostOfOperatingRevenue"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_0bd68531-c222-49ef-aef0-e8f350044522" xlink:to="loc_us-gaap_OtherCostOfOperatingRevenue_900c38c7-16d9-432e-866b-9d788631a8ec" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCostAndExpenseOperating_1d7ef204-b1a4-445a-8f44-5a8066f12104" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherCostAndExpenseOperating"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_0bd68531-c222-49ef-aef0-e8f350044522" xlink:to="loc_us-gaap_OtherCostAndExpenseOperating_1d7ef204-b1a4-445a-8f44-5a8066f12104" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_5b8a156d-00e3-4cbe-85f6-e37ec193e521" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_0bd68531-c222-49ef-aef0-e8f350044522" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_5b8a156d-00e3-4cbe-85f6-e37ec193e521" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossFromCatastrophes_e4d269b0-253f-480a-9c18-fb93b2896833" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LossFromCatastrophes"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_0bd68531-c222-49ef-aef0-e8f350044522" xlink:to="loc_us-gaap_LossFromCatastrophes_e4d269b0-253f-480a-9c18-fb93b2896833" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationIntegrationRelatedCosts_61abc90a-8308-4bc5-bc2c-89373cb072fc" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_BusinessCombinationIntegrationRelatedCosts"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_0bd68531-c222-49ef-aef0-e8f350044522" xlink:to="loc_us-gaap_BusinessCombinationIntegrationRelatedCosts_61abc90a-8308-4bc5-bc2c-89373cb072fc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_2435a08f-1d71-4acb-8c66-b9fd9c69d04d" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_0bd68531-c222-49ef-aef0-e8f350044522" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_2435a08f-1d71-4acb-8c66-b9fd9c69d04d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_2bac3be2-0bd8-47da-a8c3-c62111eccf8e" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:calculationArc order="9" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_0bd68531-c222-49ef-aef0-e8f350044522" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_2bac3be2-0bd8-47da-a8c3-c62111eccf8e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebt_448d579c-c9fa-4045-9d66-42bdbe107a12" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InterestExpenseDebt"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_0bd68531-c222-49ef-aef0-e8f350044522" xlink:to="loc_us-gaap_InterestExpenseDebt_448d579c-c9fa-4045-9d66-42bdbe107a12" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseOther_02c315de-fb45-4bb6-88b8-03f2ebb43102" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InterestExpenseOther"/>
    <link:calculationArc order="11" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_0bd68531-c222-49ef-aef0-e8f350044522" xlink:to="loc_us-gaap_InterestExpenseOther_02c315de-fb45-4bb6-88b8-03f2ebb43102" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_21190c12-24c8-4831-acfe-e0cd6d22206a" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_35557f6a-f52e-43da-9660-18761ef44bb5" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_Revenues"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_21190c12-24c8-4831-acfe-e0cd6d22206a" xlink:to="loc_us-gaap_Revenues_35557f6a-f52e-43da-9660-18761ef44bb5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostsAndExpenses_2b7b339d-a401-4d8e-8e52-25ac712abf33" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CostsAndExpenses"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_21190c12-24c8-4831-acfe-e0cd6d22206a" xlink:to="loc_us-gaap_CostsAndExpenses_2b7b339d-a401-4d8e-8e52-25ac712abf33" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_6aa42e4f-c71f-4b09-9079-0158b08ad8f9" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_Revenues"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_0d25bacf-3ad5-4265-bb8a-d471abaa5d29" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_6aa42e4f-c71f-4b09-9079-0158b08ad8f9" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_0d25bacf-3ad5-4265-bb8a-d471abaa5d29" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_sui_RevenueFromHomeSales_84577a4e-c388-4d5b-922f-c3a51fc084d6" xlink:href="sui-20220630.xsd#sui_RevenueFromHomeSales"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_6aa42e4f-c71f-4b09-9079-0158b08ad8f9" xlink:to="loc_sui_RevenueFromHomeSales_84577a4e-c388-4d5b-922f-c3a51fc084d6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_sui_AncillaryRevenue_2e721a04-2715-4b06-90cc-33d047156edf" xlink:href="sui-20220630.xsd#sui_AncillaryRevenue"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_6aa42e4f-c71f-4b09-9079-0158b08ad8f9" xlink:to="loc_sui_AncillaryRevenue_2e721a04-2715-4b06-90cc-33d047156edf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeOperating_49977b02-6b28-45b6-9006-4fb152966094" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InterestIncomeOperating"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_6aa42e4f-c71f-4b09-9079-0158b08ad8f9" xlink:to="loc_us-gaap_InterestIncomeOperating_49977b02-6b28-45b6-9006-4fb152966094" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_sui_Brokeragecommissionsandotherincomenet_6d8d53e0-d11a-4684-8070-0d63b5135648" xlink:href="sui-20220630.xsd#sui_Brokeragecommissionsandotherincomenet"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_6aa42e4f-c71f-4b09-9079-0158b08ad8f9" xlink:to="loc_sui_Brokeragecommissionsandotherincomenet_6d8d53e0-d11a-4684-8070-0d63b5135648" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_042150a5-6519-44f7-a0b4-1f9e86b8ce9d" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ProfitLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_8422a63f-eab5-4abe-99f9-c77d2cd3855d" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_042150a5-6519-44f7-a0b4-1f9e86b8ce9d" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_8422a63f-eab5-4abe-99f9-c77d2cd3855d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_sui_RemeasurementOfMarketableSecurities_49244cbf-1f0c-4e1b-8b6a-d490bd150e28" xlink:href="sui-20220630.xsd#sui_RemeasurementOfMarketableSecurities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_042150a5-6519-44f7-a0b4-1f9e86b8ce9d" xlink:to="loc_sui_RemeasurementOfMarketableSecurities_49244cbf-1f0c-4e1b-8b6a-d490bd150e28" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_162d8e72-5fe6-4d63-92d1-68b22e41ed33" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ForeignCurrencyTransactionGainLossBeforeTax"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_042150a5-6519-44f7-a0b4-1f9e86b8ce9d" xlink:to="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_162d8e72-5fe6-4d63-92d1-68b22e41ed33" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfProperties_5fa2fb9e-28af-4a95-bbba-7a04790ac980" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_GainLossOnSaleOfProperties"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_042150a5-6519-44f7-a0b4-1f9e86b8ce9d" xlink:to="loc_us-gaap_GainLossOnSaleOfProperties_5fa2fb9e-28af-4a95-bbba-7a04790ac980" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_76c34db8-d009-4222-ae04-e82c76faca95" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_042150a5-6519-44f7-a0b4-1f9e86b8ce9d" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_76c34db8-d009-4222-ae04-e82c76faca95" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_sui_LossonRemeasurementofNotesReceivable_d8be245c-7538-4471-84a7-96c2e01bca71" xlink:href="sui-20220630.xsd#sui_LossonRemeasurementofNotesReceivable"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_042150a5-6519-44f7-a0b4-1f9e86b8ce9d" xlink:to="loc_sui_LossonRemeasurementofNotesReceivable_d8be245c-7538-4471-84a7-96c2e01bca71" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_sui_DistributionsFromAffiliate_c69f3395-55dc-46aa-b3ae-6016354ba939" xlink:href="sui-20220630.xsd#sui_DistributionsFromAffiliate"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_042150a5-6519-44f7-a0b4-1f9e86b8ce9d" xlink:to="loc_sui_DistributionsFromAffiliate_c69f3395-55dc-46aa-b3ae-6016354ba939" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_sui_LossonRemeasurementofInvestment_49088d20-af2a-4878-b53a-63cabdfc5137" xlink:href="sui-20220630.xsd#sui_LossonRemeasurementofInvestment"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_042150a5-6519-44f7-a0b4-1f9e86b8ce9d" xlink:to="loc_sui_LossonRemeasurementofInvestment_49088d20-af2a-4878-b53a-63cabdfc5137" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperations_f04898ba-5ea5-4bc2-a8cd-cdea3f2e260f" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperations"/>
    <link:calculationArc order="9" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_042150a5-6519-44f7-a0b4-1f9e86b8ce9d" xlink:to="loc_us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperations_f04898ba-5ea5-4bc2-a8cd-cdea3f2e260f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_503c0d7d-58fd-48ed-891a-89265d2bbea2" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit"/>
    <link:calculationArc order="10" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_042150a5-6519-44f7-a0b4-1f9e86b8ce9d" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_503c0d7d-58fd-48ed-891a-89265d2bbea2" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.suncommunities.com/role/ConsolidatedStatementsOfComprehensiveIncome" xlink:type="simple" xlink:href="sui-20220630.xsd#ConsolidatedStatementsOfComprehensiveIncome"/>
  <link:calculationLink xlink:role="http://www.suncommunities.com/role/ConsolidatedStatementsOfComprehensiveIncome" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax_3299fd85-ce17-431d-ac30-87a91812ce50" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax_958da97e-0324-490f-8648-6abf26f25934" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax_3299fd85-ce17-431d-ac30-87a91812ce50" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax_958da97e-0324-490f-8648-6abf26f25934" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax_3e65e39a-0f93-4e6c-8b46-fedc8dc7173e" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax_3299fd85-ce17-431d-ac30-87a91812ce50" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax_3e65e39a-0f93-4e6c-8b46-fedc8dc7173e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_1199ccd7-876f-48f3-b5a2-57bedb15fbcd" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_0ea3c602-569e-4843-8719-2d8aa1a262aa" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_1199ccd7-876f-48f3-b5a2-57bedb15fbcd" xlink:to="loc_us-gaap_ProfitLoss_0ea3c602-569e-4843-8719-2d8aa1a262aa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_8dc87d6e-7aa5-47fb-ae57-f66f57cc07f8" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_1199ccd7-876f-48f3-b5a2-57bedb15fbcd" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_8dc87d6e-7aa5-47fb-ae57-f66f57cc07f8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax_ef0e68c3-bca7-4b69-8db6-da4d2e21aac2" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_1199ccd7-876f-48f3-b5a2-57bedb15fbcd" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax_ef0e68c3-bca7-4b69-8db6-da4d2e21aac2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_1fc4f6ae-723d-476a-97c5-cb65bcecfea2" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_6f7ab014-cfeb-4c31-91ef-015305e201df" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_1fc4f6ae-723d-476a-97c5-cb65bcecfea2" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_6f7ab014-cfeb-4c31-91ef-015305e201df" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_25ee2302-1bbc-4753-aa45-7b5653dbecd9" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_1fc4f6ae-723d-476a-97c5-cb65bcecfea2" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_25ee2302-1bbc-4753-aa45-7b5653dbecd9" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.suncommunities.com/role/ConsolidatedStatementsOfCashFlows" xlink:type="simple" xlink:href="sui-20220630.xsd#ConsolidatedStatementsOfCashFlows"/>
  <link:calculationLink xlink:role="http://www.suncommunities.com/role/ConsolidatedStatementsOfCashFlows" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_7ff6ddf1-8e1c-42fb-8e55-367f578a203e" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a2d5f4df-a981-4f7b-a5f0-b39d6ab6408c" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_7ff6ddf1-8e1c-42fb-8e55-367f578a203e" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a2d5f4df-a981-4f7b-a5f0-b39d6ab6408c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_38f99293-b0aa-4194-bc9b-7771ca215eb0" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_7ff6ddf1-8e1c-42fb-8e55-367f578a203e" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_38f99293-b0aa-4194-bc9b-7771ca215eb0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_9c2e392b-68e0-432c-aec8-b56c09741715" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_7ff6ddf1-8e1c-42fb-8e55-367f578a203e" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_9c2e392b-68e0-432c-aec8-b56c09741715" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_7c3c0369-42fd-437c-a6cf-422bfa693311" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireAndDevelopRealEstate_d0d53080-9e48-416c-82b2-b31c2ba2d866" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsToAcquireAndDevelopRealEstate"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_7c3c0369-42fd-437c-a6cf-422bfa693311" xlink:to="loc_us-gaap_PaymentsToAcquireAndDevelopRealEstate_d0d53080-9e48-416c-82b2-b31c2ba2d866" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_3ed0090e-97b7-4cf8-8d62-3313312a09e9" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_7c3c0369-42fd-437c-a6cf-422bfa693311" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_3ed0090e-97b7-4cf8-8d62-3313312a09e9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_71015c5c-b24a-418d-8889-b745dd70de7a" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_7c3c0369-42fd-437c-a6cf-422bfa693311" xlink:to="loc_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_71015c5c-b24a-418d-8889-b745dd70de7a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_sui_Issuanceofnotesandotherreceivables_eaf8c197-e87c-4fa6-aad0-45d315262bcd" xlink:href="sui-20220630.xsd#sui_Issuanceofnotesandotherreceivables"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_7c3c0369-42fd-437c-a6cf-422bfa693311" xlink:to="loc_sui_Issuanceofnotesandotherreceivables_eaf8c197-e87c-4fa6-aad0-45d315262bcd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_sui_RepaymentofNotesandOtherReceivables_b4bb8497-6d8b-4e4b-8647-8120839fdedf" xlink:href="sui-20220630.xsd#sui_RepaymentofNotesandOtherReceivables"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_7c3c0369-42fd-437c-a6cf-422bfa693311" xlink:to="loc_sui_RepaymentofNotesandOtherReceivables_b4bb8497-6d8b-4e4b-8647-8120839fdedf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates_5d196b18-3399-4bc0-a577-58548f9c9fef" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_7c3c0369-42fd-437c-a6cf-422bfa693311" xlink:to="loc_us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates_5d196b18-3399-4bc0-a577-58548f9c9fef" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromDivestitureOfInterestInSubsidiariesAndAffiliates_b3fd275b-4e7a-4c1f-9b62-dc8766a9df2d" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ProceedsFromDivestitureOfInterestInSubsidiariesAndAffiliates"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_7c3c0369-42fd-437c-a6cf-422bfa693311" xlink:to="loc_us-gaap_ProceedsFromDivestitureOfInterestInSubsidiariesAndAffiliates_b3fd275b-4e7a-4c1f-9b62-dc8766a9df2d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfOtherProductiveAssets_d48da7bf-621c-4634-b81e-3638c985337c" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ProceedsFromSaleOfOtherProductiveAssets"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_7c3c0369-42fd-437c-a6cf-422bfa693311" xlink:to="loc_us-gaap_ProceedsFromSaleOfOtherProductiveAssets_d48da7bf-621c-4634-b81e-3638c985337c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForProceedsFromDepositsOnRealEstateAcquisitions_ff8d0a65-14dc-4197-bfc8-aa78cc0faa26" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsForProceedsFromDepositsOnRealEstateAcquisitions"/>
    <link:calculationArc order="9" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_7c3c0369-42fd-437c-a6cf-422bfa693311" xlink:to="loc_us-gaap_PaymentsForProceedsFromDepositsOnRealEstateAcquisitions_ff8d0a65-14dc-4197-bfc8-aa78cc0faa26" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a100097b-b85a-40fa-9713-b4b81ee84e84" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOrSaleOfEquity_3e58980f-2c9a-48c7-858a-8a6adf312c12" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ProceedsFromIssuanceOrSaleOfEquity"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a100097b-b85a-40fa-9713-b4b81ee84e84" xlink:to="loc_us-gaap_ProceedsFromIssuanceOrSaleOfEquity_3e58980f-2c9a-48c7-858a-8a6adf312c12" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromLinesOfCredit_63c4f356-c0fb-4ac4-b33f-8da4aeccb99f" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ProceedsFromLinesOfCredit"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a100097b-b85a-40fa-9713-b4b81ee84e84" xlink:to="loc_us-gaap_ProceedsFromLinesOfCredit_63c4f356-c0fb-4ac4-b33f-8da4aeccb99f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLinesOfCredit_26839907-56e0-48d5-acc1-c9f392ea7c9f" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RepaymentsOfLinesOfCredit"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a100097b-b85a-40fa-9713-b4b81ee84e84" xlink:to="loc_us-gaap_RepaymentsOfLinesOfCredit_26839907-56e0-48d5-acc1-c9f392ea7c9f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_627e6caa-a612-4c2f-88fa-ec35cc36a826" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a100097b-b85a-40fa-9713-b4b81ee84e84" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_627e6caa-a612-4c2f-88fa-ec35cc36a826" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebt_ea4b3261-caef-4765-ac88-c4c64464e3af" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RepaymentsOfLongTermDebt"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a100097b-b85a-40fa-9713-b4b81ee84e84" xlink:to="loc_us-gaap_RepaymentsOfLongTermDebt_ea4b3261-caef-4765-ac88-c4c64464e3af" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_sui_PrepaymentPenaltyDebt_7a86d3b6-bd97-4deb-b446-1dc27a6b806c" xlink:href="sui-20220630.xsd#sui_PrepaymentPenaltyDebt"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a100097b-b85a-40fa-9713-b4b81ee84e84" xlink:to="loc_sui_PrepaymentPenaltyDebt_7a86d3b6-bd97-4deb-b446-1dc27a6b806c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_sui_DistributionsToStockholdersOpUnitHoldersAndPreferredOpUnitHolders_d281bae7-7908-4ef8-b5ac-88b1f54b9837" xlink:href="sui-20220630.xsd#sui_DistributionsToStockholdersOpUnitHoldersAndPreferredOpUnitHolders"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a100097b-b85a-40fa-9713-b4b81ee84e84" xlink:to="loc_sui_DistributionsToStockholdersOpUnitHoldersAndPreferredOpUnitHolders_d281bae7-7908-4ef8-b5ac-88b1f54b9837" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfFinancingCosts_b36509cf-5a12-4ead-9e49-910e7c5d8551" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsOfFinancingCosts"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a100097b-b85a-40fa-9713-b4b81ee84e84" xlink:to="loc_us-gaap_PaymentsOfFinancingCosts_b36509cf-5a12-4ead-9e49-910e7c5d8551" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_ccbf8261-9419-4a0e-983a-2322aeb767a2" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation"/>
    <link:calculationArc order="9" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a100097b-b85a-40fa-9713-b4b81ee84e84" xlink:to="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_ccbf8261-9419-4a0e-983a-2322aeb767a2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromMinorityShareholders_d3bdb274-bc5e-4a84-b464-9d6dbc25a78e" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ProceedsFromMinorityShareholders"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a100097b-b85a-40fa-9713-b4b81ee84e84" xlink:to="loc_us-gaap_ProceedsFromMinorityShareholders_d3bdb274-bc5e-4a84-b464-9d6dbc25a78e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromHedgeFinancingActivities_1cbd1671-bbac-49cc-9145-baec2005797e" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ProceedsFromHedgeFinancingActivities"/>
    <link:calculationArc order="11" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a100097b-b85a-40fa-9713-b4b81ee84e84" xlink:to="loc_us-gaap_ProceedsFromHedgeFinancingActivities_1cbd1671-bbac-49cc-9145-baec2005797e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToMinorityShareholders_81db7d4e-188c-42c3-8c80-2ec58a8c566e" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsToMinorityShareholders"/>
    <link:calculationArc order="12" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a100097b-b85a-40fa-9713-b4b81ee84e84" xlink:to="loc_us-gaap_PaymentsToMinorityShareholders_81db7d4e-188c-42c3-8c80-2ec58a8c566e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_sui_PaymentsOnFinancialLiabilityFailedSaleLeaseback_538ea020-3d4e-446e-a6b5-3e4b84fe8997" xlink:href="sui-20220630.xsd#sui_PaymentsOnFinancialLiabilityFailedSaleLeaseback"/>
    <link:calculationArc order="13" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a100097b-b85a-40fa-9713-b4b81ee84e84" xlink:to="loc_sui_PaymentsOnFinancialLiabilityFailedSaleLeaseback_538ea020-3d4e-446e-a6b5-3e4b84fe8997" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.suncommunities.com/role/RealEstateAcquisitionsScheduleofPurchasePriceAllocationDetails" xlink:type="simple" xlink:href="sui-20220630.xsd#RealEstateAcquisitionsScheduleofPurchasePriceAllocationDetails"/>
  <link:calculationLink xlink:role="http://www.suncommunities.com/role/RealEstateAcquisitionsScheduleofPurchasePriceAllocationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_66e27358-142e-40a8-8556-1e8372d15438" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_e54f556c-f7e7-4846-8ba4-9c650dbfcc15" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_66e27358-142e-40a8-8556-1e8372d15438" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_e54f556c-f7e7-4846-8ba4-9c650dbfcc15" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory_8e09bc3e-8934-4b9c-8435-6bd81d1b2045" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_66e27358-142e-40a8-8556-1e8372d15438" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory_8e09bc3e-8934-4b9c-8435-6bd81d1b2045" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_sui_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedCurrentAssetsLiabilitiesInventory_1218f5a6-c76c-4c4c-8579-fb04a457a912" xlink:href="sui-20220630.xsd#sui_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedCurrentAssetsLiabilitiesInventory"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_66e27358-142e-40a8-8556-1e8372d15438" xlink:to="loc_sui_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedCurrentAssetsLiabilitiesInventory_1218f5a6-c76c-4c4c-8579-fb04a457a912" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_sui_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherLiabilities_f4e53c1a-90e3-487e-bdc9-67bff805b8d1" xlink:href="sui-20220630.xsd#sui_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherLiabilities"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_66e27358-142e-40a8-8556-1e8372d15438" xlink:to="loc_sui_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherLiabilities_f4e53c1a-90e3-487e-bdc9-67bff805b8d1" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.suncommunities.com/role/ConsolidatedVariableInterestEntitiesScheduleofVariableInterestEntitiesDetails" xlink:type="simple" xlink:href="sui-20220630.xsd#ConsolidatedVariableInterestEntitiesScheduleofVariableInterestEntitiesDetails"/>
  <link:calculationLink xlink:role="http://www.suncommunities.com/role/ConsolidatedVariableInterestEntitiesScheduleofVariableInterestEntitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_50dc4669-b7cf-474e-a313-064521fc965c" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateInvestmentPropertyNet_aeb9a83c-a188-4dd0-a459-87c2c2228a5a" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RealEstateInvestmentPropertyNet"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_50dc4669-b7cf-474e-a313-064521fc965c" xlink:to="loc_us-gaap_RealEstateInvestmentPropertyNet_aeb9a83c-a188-4dd0-a459-87c2c2228a5a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssets_01f66ace-2b41-4d9c-8c96-e580a8d357c1" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherAssets"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_50dc4669-b7cf-474e-a313-064521fc965c" xlink:to="loc_us-gaap_OtherAssets_01f66ace-2b41-4d9c-8c96-e580a8d357c1" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.suncommunities.com/role/SegmentReportingResultsofOperationsDetails" xlink:type="simple" xlink:href="sui-20220630.xsd#SegmentReportingResultsofOperationsDetails"/>
  <link:calculationLink xlink:role="http://www.suncommunities.com/role/SegmentReportingResultsofOperationsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_eb75c5f4-dc72-4b12-a164-90f1caaabf85" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_a1ecae15-4a12-4649-b900-a6d207832cc1" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_Revenues"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_eb75c5f4-dc72-4b12-a164-90f1caaabf85" xlink:to="loc_us-gaap_Revenues_a1ecae15-4a12-4649-b900-a6d207832cc1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_sui_OperatingExpensesAndCostOfSales_f9f3e97e-89ef-411b-99d4-6ba3bfa0c6c5" xlink:href="sui-20220630.xsd#sui_OperatingExpensesAndCostOfSales"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_eb75c5f4-dc72-4b12-a164-90f1caaabf85" xlink:to="loc_sui_OperatingExpensesAndCostOfSales_f9f3e97e-89ef-411b-99d4-6ba3bfa0c6c5" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.suncommunities.com/role/EarningsPerShareCalculationofNumeratorandDenominatorDetails" xlink:type="simple" xlink:href="sui-20220630.xsd#EarningsPerShareCalculationofNumeratorandDenominatorDetails"/>
  <link:calculationLink xlink:role="http://www.suncommunities.com/role/EarningsPerShareCalculationofNumeratorandDenominatorDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_477ea4d8-ac58-4300-a219-2b9b08fbbbe7" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_748dae80-a8b7-4ae7-af50-35641b942cf2" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_477ea4d8-ac58-4300-a219-2b9b08fbbbe7" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_748dae80-a8b7-4ae7-af50-35641b942cf2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_b6a20367-970d-4a2a-89c6-361e565c51e9" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_477ea4d8-ac58-4300-a219-2b9b08fbbbe7" xlink:to="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_b6a20367-970d-4a2a-89c6-361e565c51e9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_e007949c-9a7c-4959-80f8-768b97f248f5" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_477ea4d8-ac58-4300-a219-2b9b08fbbbe7" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_e007949c-9a7c-4959-80f8-768b97f248f5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_sui_WeightedAverageCommonSharesOutstandingAdjustmentCommonShareFromForwardSale_b2ea014d-7c89-4232-8d74-55a645bcc386" xlink:href="sui-20220630.xsd#sui_WeightedAverageCommonSharesOutstandingAdjustmentCommonShareFromForwardSale"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_477ea4d8-ac58-4300-a219-2b9b08fbbbe7" xlink:to="loc_sui_WeightedAverageCommonSharesOutstandingAdjustmentCommonShareFromForwardSale_b2ea014d-7c89-4232-8d74-55a645bcc386" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_sui_Netincomeattributabletocommonshareholdersafterrestrictedstockallocation_5f5c1051-b21a-4ea9-89cb-ee8dcfe95f2b" xlink:href="sui-20220630.xsd#sui_Netincomeattributabletocommonshareholdersafterrestrictedstockallocation"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_3a9459f5-d35a-4954-9cd1-4225daf77417" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_sui_Netincomeattributabletocommonshareholdersafterrestrictedstockallocation_5f5c1051-b21a-4ea9-89cb-ee8dcfe95f2b" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_3a9459f5-d35a-4954-9cd1-4225daf77417" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_sui_IncomelossAttributabletoCommonStockholdersAllocableToNonVestedRestrictedShares_c233d74e-9e62-401f-b0bd-75543b0417c2" xlink:href="sui-20220630.xsd#sui_IncomelossAttributabletoCommonStockholdersAllocableToNonVestedRestrictedShares"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_sui_Netincomeattributabletocommonshareholdersafterrestrictedstockallocation_5f5c1051-b21a-4ea9-89cb-ee8dcfe95f2b" xlink:to="loc_sui_IncomelossAttributabletoCommonStockholdersAllocableToNonVestedRestrictedShares_c233d74e-9e62-401f-b0bd-75543b0417c2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_46c57fff-6017-4a3b-be46-0fe06d7d8117" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted"/>
    <link:loc xlink:type="locator" xlink:label="loc_sui_Netincomeattributabletocommonshareholdersafterrestrictedstockallocation_2365ee3b-a1cf-4fc9-8225-5d5501c69e39" xlink:href="sui-20220630.xsd#sui_Netincomeattributabletocommonshareholdersafterrestrictedstockallocation"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_46c57fff-6017-4a3b-be46-0fe06d7d8117" xlink:to="loc_sui_Netincomeattributabletocommonshareholdersafterrestrictedstockallocation_2365ee3b-a1cf-4fc9-8225-5d5501c69e39" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits_11e35320-7e71-4150-8348-4d2785a6c035" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_46c57fff-6017-4a3b-be46-0fe06d7d8117" xlink:to="loc_us-gaap_AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits_11e35320-7e71-4150-8348-4d2785a6c035" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.suncommunities.com/role/LeasesFutureMinimumLeasePaymentsDetails" xlink:type="simple" xlink:href="sui-20220630.xsd#LeasesFutureMinimumLeasePaymentsDetails"/>
  <link:calculationLink xlink:role="http://www.suncommunities.com/role/LeasesFutureMinimumLeasePaymentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_sui_OperatingAndFinanceLeasesLiabilityPaymentDue_a37fe6a6-a30c-4607-8c6f-b50487328477" xlink:href="sui-20220630.xsd#sui_OperatingAndFinanceLeasesLiabilityPaymentDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_sui_OperatingAndFinanceLeasesLiabilityUndiscountedExcessAmount_4493ef46-93e3-4632-9a39-736bf868f02b" xlink:href="sui-20220630.xsd#sui_OperatingAndFinanceLeasesLiabilityUndiscountedExcessAmount"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_sui_OperatingAndFinanceLeasesLiabilityPaymentDue_a37fe6a6-a30c-4607-8c6f-b50487328477" xlink:to="loc_sui_OperatingAndFinanceLeasesLiabilityUndiscountedExcessAmount_4493ef46-93e3-4632-9a39-736bf868f02b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_sui_OperatingAndFinanceLeasesLiability_e09c285f-219a-4f26-b400-96bbbec98844" xlink:href="sui-20220630.xsd#sui_OperatingAndFinanceLeasesLiability"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_sui_OperatingAndFinanceLeasesLiabilityPaymentDue_a37fe6a6-a30c-4607-8c6f-b50487328477" xlink:to="loc_sui_OperatingAndFinanceLeasesLiability_e09c285f-219a-4f26-b400-96bbbec98844" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_b6bfcaa9-f25e-499b-a447-8598cc19243d" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_bb5f4e28-dd8e-447d-a4fe-eedf8010ac13" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_b6bfcaa9-f25e-499b-a447-8598cc19243d" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_bb5f4e28-dd8e-447d-a4fe-eedf8010ac13" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_d3bc65ac-1f78-4f29-9180-546763dd89ba" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_b6bfcaa9-f25e-499b-a447-8598cc19243d" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_d3bc65ac-1f78-4f29-9180-546763dd89ba" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour_4c17b4de-b050-4d24-9086-98fa23ba2fe5" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_b6bfcaa9-f25e-499b-a447-8598cc19243d" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour_4c17b4de-b050-4d24-9086-98fa23ba2fe5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFive_6ca85492-5a3b-43f8-96b2-b5e274321c2c" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearFive"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_b6bfcaa9-f25e-499b-a447-8598cc19243d" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFive_6ca85492-5a3b-43f8-96b2-b5e274321c2c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueAfterYearFive_68ad2b3c-e8c3-4376-b503-099349c7a601" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueAfterYearFive"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_b6bfcaa9-f25e-499b-a447-8598cc19243d" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueAfterYearFive_68ad2b3c-e8c3-4376-b503-099349c7a601" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_1426f934-f24c-4d4a-954b-e7b63329e8f0" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_8c83a6b5-29a8-4853-a214-d765f0ab1fbc" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_1426f934-f24c-4d4a-954b-e7b63329e8f0" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_8c83a6b5-29a8-4853-a214-d765f0ab1fbc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability_620ac3aa-8d1d-4389-8c75-6461cd260e43" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeaseLiability"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_1426f934-f24c-4d4a-954b-e7b63329e8f0" xlink:to="loc_us-gaap_OperatingLeaseLiability_620ac3aa-8d1d-4389-8c75-6461cd260e43" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.suncommunities.com/role/LeasesFutureMinimumLeasePaymentsDetails_1" xlink:type="simple" xlink:href="sui-20220630.xsd#LeasesFutureMinimumLeasePaymentsDetails_1"/>
  <link:calculationLink xlink:role="http://www.suncommunities.com/role/LeasesFutureMinimumLeasePaymentsDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_sui_OperatingAndFinanceLeasesLiabilityPaymentDue_5a857f68-2bc7-4366-9b0b-b30ef42f747a" xlink:href="sui-20220630.xsd#sui_OperatingAndFinanceLeasesLiabilityPaymentDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_sui_OperatingAndFinanceLeasesLiabilityPaymentsRemainderofFiscalYear_ae2c8ec7-e8a3-466e-9871-07986bae7de0" xlink:href="sui-20220630.xsd#sui_OperatingAndFinanceLeasesLiabilityPaymentsRemainderofFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_sui_OperatingAndFinanceLeasesLiabilityPaymentDue_5a857f68-2bc7-4366-9b0b-b30ef42f747a" xlink:to="loc_sui_OperatingAndFinanceLeasesLiabilityPaymentsRemainderofFiscalYear_ae2c8ec7-e8a3-466e-9871-07986bae7de0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_sui_OperatingAndFinanceLeasesLiabilityPaymentsDueYearTwo_fef2a036-415e-4932-a6ce-693f387024e1" xlink:href="sui-20220630.xsd#sui_OperatingAndFinanceLeasesLiabilityPaymentsDueYearTwo"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_sui_OperatingAndFinanceLeasesLiabilityPaymentDue_5a857f68-2bc7-4366-9b0b-b30ef42f747a" xlink:to="loc_sui_OperatingAndFinanceLeasesLiabilityPaymentsDueYearTwo_fef2a036-415e-4932-a6ce-693f387024e1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_sui_OperatingAndFinanceLeasesLiabilityPaymentsDueYearThree_74c847d8-99bb-43de-85d2-194d2b051915" xlink:href="sui-20220630.xsd#sui_OperatingAndFinanceLeasesLiabilityPaymentsDueYearThree"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_sui_OperatingAndFinanceLeasesLiabilityPaymentDue_5a857f68-2bc7-4366-9b0b-b30ef42f747a" xlink:to="loc_sui_OperatingAndFinanceLeasesLiabilityPaymentsDueYearThree_74c847d8-99bb-43de-85d2-194d2b051915" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_sui_OperatingAndFinanceLeasesLiabilityPaymentsDueYearFour_62aa9537-fd09-42d3-9a2c-73aeb77d1813" xlink:href="sui-20220630.xsd#sui_OperatingAndFinanceLeasesLiabilityPaymentsDueYearFour"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_sui_OperatingAndFinanceLeasesLiabilityPaymentDue_5a857f68-2bc7-4366-9b0b-b30ef42f747a" xlink:to="loc_sui_OperatingAndFinanceLeasesLiabilityPaymentsDueYearFour_62aa9537-fd09-42d3-9a2c-73aeb77d1813" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_sui_OperatingAndFinanceLeasesLiabilityPaymentsDueYearFive_0d8803bc-868d-4c0e-8fd2-22d83f3bdba4" xlink:href="sui-20220630.xsd#sui_OperatingAndFinanceLeasesLiabilityPaymentsDueYearFive"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_sui_OperatingAndFinanceLeasesLiabilityPaymentDue_5a857f68-2bc7-4366-9b0b-b30ef42f747a" xlink:to="loc_sui_OperatingAndFinanceLeasesLiabilityPaymentsDueYearFive_0d8803bc-868d-4c0e-8fd2-22d83f3bdba4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_sui_OperatingAndFinanceLeasesLiabilityPaymentsDueafterYearFive_6eb88611-f1bc-4a6d-a2c8-347f84ed3fb3" xlink:href="sui-20220630.xsd#sui_OperatingAndFinanceLeasesLiabilityPaymentsDueafterYearFive"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_sui_OperatingAndFinanceLeasesLiabilityPaymentDue_5a857f68-2bc7-4366-9b0b-b30ef42f747a" xlink:to="loc_sui_OperatingAndFinanceLeasesLiabilityPaymentsDueafterYearFive_6eb88611-f1bc-4a6d-a2c8-347f84ed3fb3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_910ee3d4-1565-4ce2-9613-751f4f542fb0" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_eb42fb69-21a5-4e43-8c1a-9667465d1c3a" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_910ee3d4-1565-4ce2-9613-751f4f542fb0" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_eb42fb69-21a5-4e43-8c1a-9667465d1c3a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_d1174237-d4b8-4857-b906-adec1b183887" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_910ee3d4-1565-4ce2-9613-751f4f542fb0" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_d1174237-d4b8-4857-b906-adec1b183887" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_6cbdd24e-7e9a-4518-bb6f-e9cab3d7504b" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_910ee3d4-1565-4ce2-9613-751f4f542fb0" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_6cbdd24e-7e9a-4518-bb6f-e9cab3d7504b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive_df3318df-6f95-42fe-8334-2673af03d4bc" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_910ee3d4-1565-4ce2-9613-751f4f542fb0" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive_df3318df-6f95-42fe-8334-2673af03d4bc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive_3c98c426-6acc-4e1c-b8d3-1837bb2aabf6" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_910ee3d4-1565-4ce2-9613-751f4f542fb0" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive_3c98c426-6acc-4e1c-b8d3-1837bb2aabf6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_f6156588-2c0d-4786-8e8e-d7e8f9ed84ab" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_7600b36b-1368-42d5-b48b-7e08d2d0691e" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_f6156588-2c0d-4786-8e8e-d7e8f9ed84ab" xlink:to="loc_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_7600b36b-1368-42d5-b48b-7e08d2d0691e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiability_f8aa843e-a463-4698-9b55-2ff965891425" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiability"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_f6156588-2c0d-4786-8e8e-d7e8f9ed84ab" xlink:to="loc_us-gaap_FinanceLeaseLiability_f8aa843e-a463-4698-9b55-2ff965891425" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.suncommunities.com/role/LeasesLeaseExpenseDetails" xlink:type="simple" xlink:href="sui-20220630.xsd#LeasesLeaseExpenseDetails"/>
  <link:calculationLink xlink:role="http://www.suncommunities.com/role/LeasesLeaseExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_sui_OperatingAndFinanceLeasePayments_5e877334-42a7-49cd-95c7-e3e113fe24d3" xlink:href="sui-20220630.xsd#sui_OperatingAndFinanceLeasePayments"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeasePayments_658db134-3dde-45eb-9076-5dbad49a8291" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeasePayments"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_sui_OperatingAndFinanceLeasePayments_5e877334-42a7-49cd-95c7-e3e113fe24d3" xlink:to="loc_us-gaap_OperatingLeasePayments_658db134-3dde-45eb-9076-5dbad49a8291" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeasePrincipalPayments_624eabb5-30d9-4c9f-a046-cf1a5288a62d" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeasePrincipalPayments"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_sui_OperatingAndFinanceLeasePayments_5e877334-42a7-49cd-95c7-e3e113fe24d3" xlink:to="loc_us-gaap_FinanceLeasePrincipalPayments_624eabb5-30d9-4c9f-a046-cf1a5288a62d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseCost_ad8dabae-a8bc-47a4-9f4f-1494a22efc3b" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LeaseCost"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAssetAmortization_ecf04874-3ddd-42c5-977b-bfa673899009" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseRightOfUseAssetAmortization"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_ad8dabae-a8bc-47a4-9f4f-1494a22efc3b" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAssetAmortization_ecf04874-3ddd-42c5-977b-bfa673899009" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseInterestExpense_27962bb9-f350-457e-b1f8-dadbd5fc6dac" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseInterestExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_ad8dabae-a8bc-47a4-9f4f-1494a22efc3b" xlink:to="loc_us-gaap_FinanceLeaseInterestExpense_27962bb9-f350-457e-b1f8-dadbd5fc6dac" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseCost_bef932aa-ca64-424a-8ab5-44559ef39f6e" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeaseCost"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_ad8dabae-a8bc-47a4-9f4f-1494a22efc3b" xlink:to="loc_us-gaap_OperatingLeaseCost_bef932aa-ca64-424a-8ab5-44559ef39f6e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableLeaseCost_55eac759-4f6e-4beb-8f9e-64c91ea2fc89" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_VariableLeaseCost"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_ad8dabae-a8bc-47a4-9f4f-1494a22efc3b" xlink:to="loc_us-gaap_VariableLeaseCost_55eac759-4f6e-4beb-8f9e-64c91ea2fc89" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
