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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2025 Workiva-->
<!--r:33cef221-8b68-4389-b6eb-8b715c26fbee,g:fb89f6ad-6aab-4769-b3d7-b0db8664d48d-->
<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://bsprealtytrust.com/role/CONSOLIDATEDBALANCESHEETS" xlink:type="simple" xlink:href="bsprt-20250930.xsd#CONSOLIDATEDBALANCESHEETS"/>
  <link:calculationLink xlink:role="http://bsprealtytrust.com/role/CONSOLIDATEDBALANCESHEETS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_c63ab55b-0d23-49fb-a68b-15af76183641" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Liabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebt_87a9eb19-9e7c-4219-bb1a-0bcc3f1e9fe4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.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_c63ab55b-0d23-49fb-a68b-15af76183641" xlink:to="loc_us-gaap_SecuredDebt_87a9eb19-9e7c-4219-bb1a-0bcc3f1e9fe4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesSoldUnderAgreementsToRepurchase_2b960601-e112-48d0-8f0e-fc35fd0c1b04" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SecuritiesSoldUnderAgreementsToRepurchase"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_c63ab55b-0d23-49fb-a68b-15af76183641" xlink:to="loc_us-gaap_SecuritiesSoldUnderAgreementsToRepurchase_2b960601-e112-48d0-8f0e-fc35fd0c1b04" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLongTermDebt_32af3f19-0d27-494b-93e5-a7265e232a8f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherLongTermDebt"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_c63ab55b-0d23-49fb-a68b-15af76183641" xlink:to="loc_us-gaap_OtherLongTermDebt_32af3f19-0d27-494b-93e5-a7265e232a8f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnsecuredDebt_85337f83-f59b-4a44-a158-2ad9ea8f0aa5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnsecuredDebt"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_c63ab55b-0d23-49fb-a68b-15af76183641" xlink:to="loc_us-gaap_UnsecuredDebt_85337f83-f59b-4a44-a158-2ad9ea8f0aa5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesPayable_3a327e4e-89fd-44af-a0d5-5cff4194f888" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NotesPayable"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_c63ab55b-0d23-49fb-a68b-15af76183641" xlink:to="loc_us-gaap_NotesPayable_3a327e4e-89fd-44af-a0d5-5cff4194f888" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_AllowanceForLossSharing_79adc18c-0f4e-4a87-8314-6648c4375dff" xlink:href="bsprt-20250930.xsd#bsprt_AllowanceForLossSharing"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_c63ab55b-0d23-49fb-a68b-15af76183641" xlink:to="loc_bsprt_AllowanceForLossSharing_79adc18c-0f4e-4a87-8314-6648c4375dff" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrentAndNoncurrent_e7f69c03-fcb7-4386-8a9a-a2ef859c3421" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrentAndNoncurrent"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_c63ab55b-0d23-49fb-a68b-15af76183641" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrentAndNoncurrent_e7f69c03-fcb7-4386-8a9a-a2ef859c3421" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_LoanRepurchaseOptionLiabilities_2346fd08-15dd-40f9-8cba-7caaf317e2f7" xlink:href="bsprt-20250930.xsd#bsprt_LoanRepurchaseOptionLiabilities"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_c63ab55b-0d23-49fb-a68b-15af76183641" xlink:to="loc_bsprt_LoanRepurchaseOptionLiabilities_2346fd08-15dd-40f9-8cba-7caaf317e2f7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestPayableCurrentAndNoncurrent_323197c5-d573-46d7-86eb-fce58d839418" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestPayableCurrentAndNoncurrent"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_c63ab55b-0d23-49fb-a68b-15af76183641" xlink:to="loc_us-gaap_InterestPayableCurrentAndNoncurrent_323197c5-d573-46d7-86eb-fce58d839418" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsPayableCurrentAndNoncurrent_6dbd1452-aa4d-47ed-8252-deb4f4fc30cc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DividendsPayableCurrentAndNoncurrent"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_c63ab55b-0d23-49fb-a68b-15af76183641" xlink:to="loc_us-gaap_DividendsPayableCurrentAndNoncurrent_6dbd1452-aa4d-47ed-8252-deb4f4fc30cc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent_60a71a96-ade1-4d35-b7a8-2fde36201fb8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent"/>
    <link:calculationArc order="11" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_c63ab55b-0d23-49fb-a68b-15af76183641" xlink:to="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent_60a71a96-ade1-4d35-b7a8-2fde36201fb8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_e910d5ae-d6ed-42f1-a40f-9dd707adc573" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:calculationArc order="12" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_c63ab55b-0d23-49fb-a68b-15af76183641" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_e910d5ae-d6ed-42f1-a40f-9dd707adc573" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilities_64d19762-4043-4d10-8b6c-bbbbf7efc232" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeLiabilities"/>
    <link:calculationArc order="13" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_c63ab55b-0d23-49fb-a68b-15af76183641" xlink:to="loc_us-gaap_DerivativeLiabilities_64d19762-4043-4d10-8b6c-bbbbf7efc232" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_e66f4dfe-5c09-4a41-b7f0-b2b902e37598" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherLiabilitiesCurrent"/>
    <link:calculationArc order="14" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_c63ab55b-0d23-49fb-a68b-15af76183641" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_e66f4dfe-5c09-4a41-b7f0-b2b902e37598" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_f66ed2ce-e351-4042-903c-66dad310c6bb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_dd9f16fb-0a38-48da-8af1-d3580c144bf9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.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_f66ed2ce-e351-4042-903c-66dad310c6bb" xlink:to="loc_us-gaap_Liabilities_dd9f16fb-0a38-48da-8af1-d3580c144bf9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_a0aa487c-fd5f-44d2-b6b6-bbf8d0f6e075" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_f66ed2ce-e351-4042-903c-66dad310c6bb" xlink:to="loc_us-gaap_CommitmentsAndContingencies_a0aa487c-fd5f-44d2-b6b6-bbf8d0f6e075" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertiblePreferredStockNonredeemableOrRedeemableIssuerOptionValue_d58ecb15-a57a-498b-bef8-c1f2e4224f57" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConvertiblePreferredStockNonredeemableOrRedeemableIssuerOptionValue"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_f66ed2ce-e351-4042-903c-66dad310c6bb" xlink:to="loc_us-gaap_ConvertiblePreferredStockNonredeemableOrRedeemableIssuerOptionValue_d58ecb15-a57a-498b-bef8-c1f2e4224f57" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_8de7878e-e555-408b-8b6b-6ce43f465d99" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_f66ed2ce-e351-4042-903c-66dad310c6bb" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_8de7878e-e555-408b-8b6b-6ce43f465d99" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_14ed3023-464d-41fa-ac95-1280cecbafc4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_3615bdb6-5a7f-4181-b594-e5d26c4a3ee2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_14ed3023-464d-41fa-ac95-1280cecbafc4" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_3615bdb6-5a7f-4181-b594-e5d26c4a3ee2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalents_39bb56e5-b337-4bef-a60d-c4d21db03ee3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestrictedCashAndCashEquivalents"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_14ed3023-464d-41fa-ac95-1280cecbafc4" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalents_39bb56e5-b337-4bef-a60d-c4d21db03ee3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLoss_b46c7cbc-5062-4fc0-b354-158892cbce18" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLoss"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_14ed3023-464d-41fa-ac95-1280cecbafc4" xlink:to="loc_us-gaap_DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLoss_b46c7cbc-5062-4fc0-b354-158892cbce18" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss_563883e0-04ee-4c31-9a10-c1ba770f9361" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_14ed3023-464d-41fa-ac95-1280cecbafc4" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss_563883e0-04ee-4c31-9a10-c1ba770f9361" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MortgagesHeldForSaleFairValueDisclosure_bf0ff2c6-7c33-480d-9d26-6f408a333fff" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MortgagesHeldForSaleFairValueDisclosure"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_14ed3023-464d-41fa-ac95-1280cecbafc4" xlink:to="loc_us-gaap_MortgagesHeldForSaleFairValueDisclosure_bf0ff2c6-7c33-480d-9d26-6f408a333fff" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_LoanMortgageHeldForSale_95d2bc21-490d-4768-93e5-42ce61a594c0" xlink:href="bsprt-20250930.xsd#bsprt_LoanMortgageHeldForSale"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_14ed3023-464d-41fa-ac95-1280cecbafc4" xlink:to="loc_bsprt_LoanMortgageHeldForSale_95d2bc21-490d-4768-93e5-42ce61a594c0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_611c4678-81f5-465b-b501-c62a41127c95" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_14ed3023-464d-41fa-ac95-1280cecbafc4" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_611c4678-81f5-465b-b501-c62a41127c95" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ServicingAsset_8531b1a3-853b-4c51-9ffb-7b7f3931b87d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ServicingAsset"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_14ed3023-464d-41fa-ac95-1280cecbafc4" xlink:to="loc_us-gaap_ServicingAsset_8531b1a3-853b-4c51-9ffb-7b7f3931b87d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestReceivable_28962f3c-ea98-4682-b0e8-99ca3307aa7e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestReceivable"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_14ed3023-464d-41fa-ac95-1280cecbafc4" xlink:to="loc_us-gaap_InterestReceivable_28962f3c-ea98-4682-b0e8-99ca3307aa7e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_ReceivablesForLoanRepayment_dc06fe6f-fee1-4293-875a-7e06a310287f" xlink:href="bsprt-20250930.xsd#bsprt_ReceivablesForLoanRepayment"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_14ed3023-464d-41fa-ac95-1280cecbafc4" xlink:to="loc_bsprt_ReceivablesForLoanRepayment_dc06fe6f-fee1-4293-875a-7e06a310287f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssets_5229730e-24a1-48e0-8b84-70b04098f28c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PrepaidExpenseAndOtherAssets"/>
    <link:calculationArc order="11" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_14ed3023-464d-41fa-ac95-1280cecbafc4" xlink:to="loc_us-gaap_PrepaidExpenseAndOtherAssets_5229730e-24a1-48e0-8b84-70b04098f28c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateAcquiredThroughForeclosure_b3354460-8925-42a2-b8ea-4f16baadffe6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateAcquiredThroughForeclosure"/>
    <link:calculationArc order="12" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_14ed3023-464d-41fa-ac95-1280cecbafc4" xlink:to="loc_us-gaap_RealEstateAcquiredThroughForeclosure_b3354460-8925-42a2-b8ea-4f16baadffe6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateHeldforsale_dfbe81f0-af64-4488-ba42-b89739f3dbf2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateHeldforsale"/>
    <link:calculationArc order="13" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_14ed3023-464d-41fa-ac95-1280cecbafc4" xlink:to="loc_us-gaap_RealEstateHeldforsale_dfbe81f0-af64-4488-ba42-b89739f3dbf2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestments_e5d01155-1271-4139-afe8-a97b6e161048" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityMethodInvestments"/>
    <link:calculationArc order="14" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_14ed3023-464d-41fa-ac95-1280cecbafc4" xlink:to="loc_us-gaap_EquityMethodInvestments_e5d01155-1271-4139-afe8-a97b6e161048" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAsset_83469581-a00b-4635-adcd-b9f54cb99584" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseRightOfUseAsset"/>
    <link:calculationArc order="15" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_14ed3023-464d-41fa-ac95-1280cecbafc4" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAsset_83469581-a00b-4635-adcd-b9f54cb99584" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_a0728e78-4a1d-47bc-a0b3-15d842a59978" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="16" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_14ed3023-464d-41fa-ac95-1280cecbafc4" xlink:to="loc_us-gaap_Goodwill_a0728e78-4a1d-47bc-a0b3-15d842a59978" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssets_ad7dba8e-1446-4359-ad87-cfaeb8291c46" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeAssets"/>
    <link:calculationArc order="17" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_14ed3023-464d-41fa-ac95-1280cecbafc4" xlink:to="loc_us-gaap_DerivativeAssets_ad7dba8e-1446-4359-ad87-cfaeb8291c46" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LoansReceivableFairValueDisclosure_6237d5d4-897d-4bb4-9a1c-7ea559135071" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LoansReceivableFairValueDisclosure"/>
    <link:calculationArc order="18" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_14ed3023-464d-41fa-ac95-1280cecbafc4" xlink:to="loc_us-gaap_LoansReceivableFairValueDisclosure_6237d5d4-897d-4bb4-9a1c-7ea559135071" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_c58ede71-b539-4757-b7dc-8e1a80aa2c5f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_8b0d0c5c-fab4-4ab2-b319-6bdbdcd60181" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquity"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_c58ede71-b539-4757-b7dc-8e1a80aa2c5f" xlink:to="loc_us-gaap_StockholdersEquity_8b0d0c5c-fab4-4ab2-b319-6bdbdcd60181" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterest_56ea8687-3e90-48a9-86c6-650b3c92b513" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MinorityInterest"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_c58ede71-b539-4757-b7dc-8e1a80aa2c5f" xlink:to="loc_us-gaap_MinorityInterest_56ea8687-3e90-48a9-86c6-650b3c92b513" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_995f06cd-bfcc-4954-8c4d-452a357ee20a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue_cdc97324-5fb2-45a1-a7d2-41886b83324e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_995f06cd-bfcc-4954-8c4d-452a357ee20a" xlink:to="loc_us-gaap_PreferredStockValue_cdc97324-5fb2-45a1-a7d2-41886b83324e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_98df113f-eeb4-489d-89bd-99d8d668049e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockValue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_995f06cd-bfcc-4954-8c4d-452a357ee20a" xlink:to="loc_us-gaap_CommonStockValue_98df113f-eeb4-489d-89bd-99d8d668049e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapital_8a2a7d01-1acd-45a3-888e-20380ae83308" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdditionalPaidInCapital"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_995f06cd-bfcc-4954-8c4d-452a357ee20a" xlink:to="loc_us-gaap_AdditionalPaidInCapital_8a2a7d01-1acd-45a3-888e-20380ae83308" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_221ad497-a732-42e1-9567-b201e9b6a4e2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_995f06cd-bfcc-4954-8c4d-452a357ee20a" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_221ad497-a732-42e1-9567-b201e9b6a4e2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_9e766ff3-62e6-4368-b6b2-0e53d26b90fe" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_995f06cd-bfcc-4954-8c4d-452a357ee20a" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_9e766ff3-62e6-4368-b6b2-0e53d26b90fe" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://bsprealtytrust.com/role/CONSOLIDATEDSTATEMENTSOFOPERATIONS" xlink:type="simple" xlink:href="bsprt-20250930.xsd#CONSOLIDATEDSTATEMENTSOFOPERATIONS"/>
  <link:calculationLink xlink:role="http://bsprealtytrust.com/role/CONSOLIDATEDSTATEMENTSOFOPERATIONS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossIncludingPortionAttributableToNoncontrollingInterest_c72f93ff-1118-46b3-8ad6-576dc0c7cdab" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_8fca6e3a-c14d-4b7c-8eb6-97a005363ca3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.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_IncomeLossIncludingPortionAttributableToNoncontrollingInterest_c72f93ff-1118-46b3-8ad6-576dc0c7cdab" xlink:to="loc_us-gaap_Revenues_8fca6e3a-c14d-4b7c-8eb6-97a005363ca3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_25f4049a-5911-494e-832d-b75c2abadabe" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingExpenses"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossIncludingPortionAttributableToNoncontrollingInterest_c72f93ff-1118-46b3-8ad6-576dc0c7cdab" xlink:to="loc_us-gaap_OperatingExpenses_25f4049a-5911-494e-832d-b75c2abadabe" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_ac333a70-e00a-404f-8737-9427c9091ee6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossIncludingPortionAttributableToNoncontrollingInterest_c72f93ff-1118-46b3-8ad6-576dc0c7cdab" xlink:to="loc_us-gaap_NonoperatingIncomeExpense_ac333a70-e00a-404f-8737-9427c9091ee6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_f5798039-3690-4730-8c80-474dd244f133" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_b6ab7024-e888-415d-a6a7-f59b374c920c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.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_f5798039-3690-4730-8c80-474dd244f133" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_b6ab7024-e888-415d-a6a7-f59b374c920c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_7d70d1eb-8055-464a-a94f-4f26af1b8435" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_f5798039-3690-4730-8c80-474dd244f133" xlink:to="loc_us-gaap_ProfitLoss_7d70d1eb-8055-464a-a94f-4f26af1b8435" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_NetIncomeLossAvailableToCommonStockholdersDilutedIncludingUndistributedEarningsLossAllocatedToParticipatingSecurities_6903cd06-b1a9-442c-bd36-b3e7458c2b6e" xlink:href="bsprt-20250930.xsd#bsprt_NetIncomeLossAvailableToCommonStockholdersDilutedIncludingUndistributedEarningsLossAllocatedToParticipatingSecurities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_925a2500-13fe-4367-9221-77f778e9163c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_bsprt_NetIncomeLossAvailableToCommonStockholdersDilutedIncludingUndistributedEarningsLossAllocatedToParticipatingSecurities_6903cd06-b1a9-442c-bd36-b3e7458c2b6e" xlink:to="loc_us-gaap_NetIncomeLoss_925a2500-13fe-4367-9221-77f778e9163c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockDividendsAndOtherAdjustments_a82ee466-f034-4d41-b4ca-8ac00ee2716c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockDividendsAndOtherAdjustments"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_bsprt_NetIncomeLossAvailableToCommonStockholdersDilutedIncludingUndistributedEarningsLossAllocatedToParticipatingSecurities_6903cd06-b1a9-442c-bd36-b3e7458c2b6e" xlink:to="loc_us-gaap_PreferredStockDividendsAndOtherAdjustments_a82ee466-f034-4d41-b4ca-8ac00ee2716c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNet_bf9f6fd4-98a1-47c4-9728-57aacad19386" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestIncomeExpenseNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestAndDividendIncomeOperating_f93c3702-56cd-4498-bc6b-f9d13c40d712" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestAndDividendIncomeOperating"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InterestIncomeExpenseNet_bf9f6fd4-98a1-47c4-9728-57aacad19386" xlink:to="loc_us-gaap_InterestAndDividendIncomeOperating_f93c3702-56cd-4498-bc6b-f9d13c40d712" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDeposits_75bb65d8-91d3-4104-8177-7bc668a8d65c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestExpenseDeposits"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InterestIncomeExpenseNet_bf9f6fd4-98a1-47c4-9728-57aacad19386" xlink:to="loc_us-gaap_InterestExpenseDeposits_75bb65d8-91d3-4104-8177-7bc668a8d65c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_NetIncomeLossAvailableToCommonStockholdersBasicIncludingUndistributedEarningsLossAllocatedToParticipatingSecurities_5278704f-c54c-4eff-a991-4035237f7f22" xlink:href="bsprt-20250930.xsd#bsprt_NetIncomeLossAvailableToCommonStockholdersBasicIncludingUndistributedEarningsLossAllocatedToParticipatingSecurities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_16be22a5-5e7d-4904-9c21-93890b197ad1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_bsprt_NetIncomeLossAvailableToCommonStockholdersBasicIncludingUndistributedEarningsLossAllocatedToParticipatingSecurities_5278704f-c54c-4eff-a991-4035237f7f22" xlink:to="loc_us-gaap_NetIncomeLoss_16be22a5-5e7d-4904-9c21-93890b197ad1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockDividendsAndOtherAdjustments_57979dfb-fc6f-4734-a9f4-70c6399b2dd4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockDividendsAndOtherAdjustments"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_bsprt_NetIncomeLossAvailableToCommonStockholdersBasicIncludingUndistributedEarningsLossAllocatedToParticipatingSecurities_5278704f-c54c-4eff-a991-4035237f7f22" xlink:to="loc_us-gaap_PreferredStockDividendsAndOtherAdjustments_57979dfb-fc6f-4734-a9f4-70c6399b2dd4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_ded49218-ef40-4258-a966-6cd873779b27" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfitLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossIncludingPortionAttributableToNoncontrollingInterest_7a5744d1-a83d-4ca2-aceb-69b855280dfa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_ded49218-ef40-4258-a966-6cd873779b27" xlink:to="loc_us-gaap_IncomeLossIncludingPortionAttributableToNoncontrollingInterest_7a5744d1-a83d-4ca2-aceb-69b855280dfa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_a152f86d-920e-4710-b84e-82cf37433d13" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_ded49218-ef40-4258-a966-6cd873779b27" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_a152f86d-920e-4710-b84e-82cf37433d13" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_8fac6e0a-662b-4811-9f9e-d70694efc1e4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Revenues"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNet_0521f3da-3c0a-4584-8a74-727b5643987a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestIncomeExpenseNet"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_8fac6e0a-662b-4811-9f9e-d70694efc1e4" xlink:to="loc_us-gaap_InterestIncomeExpenseNet_0521f3da-3c0a-4584-8a74-727b5643987a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSalesOfLoansNet_001d29bd-c4ad-4db4-bc23-462990953dff" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainLossOnSalesOfLoansNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_8fac6e0a-662b-4811-9f9e-d70694efc1e4" xlink:to="loc_us-gaap_GainLossOnSalesOfLoansNet_001d29bd-c4ad-4db4-bc23-462990953dff" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_OriginatedMortgageServicingRightsRevenue_49bb2914-f9d2-4ff9-afb6-687af5fc8337" xlink:href="bsprt-20250930.xsd#bsprt_OriginatedMortgageServicingRightsRevenue"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_8fac6e0a-662b-4811-9f9e-d70694efc1e4" xlink:to="loc_bsprt_OriginatedMortgageServicingRightsRevenue_49bb2914-f9d2-4ff9-afb6-687af5fc8337" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets_6a857f1f-2032-4074-a4a7-7317ac05d8fd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_8fac6e0a-662b-4811-9f9e-d70694efc1e4" xlink:to="loc_us-gaap_ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets_6a857f1f-2032-4074-a4a7-7317ac05d8fd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeGainLossOnDerivativeNet_5877d1e1-4c2f-4642-81c7-208fb9748423" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeGainLossOnDerivativeNet"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_8fac6e0a-662b-4811-9f9e-d70694efc1e4" xlink:to="loc_us-gaap_DerivativeGainLossOnDerivativeNet_5877d1e1-4c2f-4642-81c7-208fb9748423" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseIncome_4a153f8c-453c-4714-9877-4a33a640a00a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LeaseIncome"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_8fac6e0a-662b-4811-9f9e-d70694efc1e4" xlink:to="loc_us-gaap_LeaseIncome_4a153f8c-453c-4714-9877-4a33a640a00a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_3a3c5cbe-f2b5-4f29-a2e2-ef5c15dde4a9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal_1be8f2f6-b4aa-41a9-8928-cd0b87a9baf6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_3a3c5cbe-f2b5-4f29-a2e2-ef5c15dde4a9" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal_1be8f2f6-b4aa-41a9-8928-cd0b87a9baf6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleRealizedGainLoss_e3dc0eec-7605-4825-8b4b-ecdfaf07009d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesAvailableForSaleRealizedGainLoss"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_3a3c5cbe-f2b5-4f29-a2e2-ef5c15dde4a9" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleRealizedGainLoss_e3dc0eec-7605-4825-8b4b-ecdfaf07009d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_GainLossOnOtherRealEstateInvestments_8a56795a-018a-4e0c-a2ed-68934b98d319" xlink:href="bsprt-20250930.xsd#bsprt_GainLossOnOtherRealEstateInvestments"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_3a3c5cbe-f2b5-4f29-a2e2-ef5c15dde4a9" xlink:to="loc_bsprt_GainLossOnOtherRealEstateInvestments_8a56795a-018a-4e0c-a2ed-68934b98d319" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_4691810e-8d9f-48da-af5a-73325139c43b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromEquityMethodInvestments"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_3a3c5cbe-f2b5-4f29-a2e2-ef5c15dde4a9" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_4691810e-8d9f-48da-af5a-73325139c43b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_11131fb4-eccf-4ed1-b6d9-1902122a29d3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingExpenses"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_AssetManagementAndSubordinatedPerformanceFees_8f571c1b-e7ba-411a-b256-5e0f91f49a88" xlink:href="bsprt-20250930.xsd#bsprt_AssetManagementAndSubordinatedPerformanceFees"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_11131fb4-eccf-4ed1-b6d9-1902122a29d3" xlink:to="loc_bsprt_AssetManagementAndSubordinatedPerformanceFees_8f571c1b-e7ba-411a-b256-5e0f91f49a88" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationAcquisitionRelatedCosts_5f991eeb-927a-4eda-a029-3a612c8a507a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationAcquisitionRelatedCosts"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_11131fb4-eccf-4ed1-b6d9-1902122a29d3" xlink:to="loc_us-gaap_BusinessCombinationAcquisitionRelatedCosts_5f991eeb-927a-4eda-a029-3a612c8a507a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_3e61a778-2fd1-4fff-8a96-8aa44b13cd35" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_11131fb4-eccf-4ed1-b6d9-1902122a29d3" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_3e61a778-2fd1-4fff-8a96-8aa44b13cd35" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfessionalFees_48f658c0-2198-49b3-a3a6-7340613e5358" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfessionalFees"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_11131fb4-eccf-4ed1-b6d9-1902122a29d3" xlink:to="loc_us-gaap_ProfessionalFees_48f658c0-2198-49b3-a3a6-7340613e5358" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_631cced0-c684-4085-ae98-239e36f03f29" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_11131fb4-eccf-4ed1-b6d9-1902122a29d3" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_631cced0-c684-4085-ae98-239e36f03f29" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationAndAmortization_9ceb8034-9405-44ac-9f17-641435cb5e2f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DepreciationAndAmortization"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_11131fb4-eccf-4ed1-b6d9-1902122a29d3" xlink:to="loc_us-gaap_DepreciationAndAmortization_9ceb8034-9405-44ac-9f17-641435cb5e2f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherGeneralExpense_9bde1c50-ba48-441f-a189-2b004abd81c4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherGeneralExpense"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_11131fb4-eccf-4ed1-b6d9-1902122a29d3" xlink:to="loc_us-gaap_OtherGeneralExpense_9bde1c50-ba48-441f-a189-2b004abd81c4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LaborAndRelatedExpense_6c4597ed-c6ce-4557-9bc1-bbfea23c4f6a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LaborAndRelatedExpense"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_11131fb4-eccf-4ed1-b6d9-1902122a29d3" xlink:to="loc_us-gaap_LaborAndRelatedExpense_6c4597ed-c6ce-4557-9bc1-bbfea23c4f6a" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://bsprealtytrust.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOME" xlink:type="simple" xlink:href="bsprt-20250930.xsd#CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOME"/>
  <link:calculationLink xlink:role="http://bsprealtytrust.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOME" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_56c5297f-379a-40f0-be71-3a3fa49dfc65" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_d857fc0f-ad5c-44bb-acc0-20f6ced5d27e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.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_ComprehensiveIncomeNetOfTax_56c5297f-379a-40f0-be71-3a3fa49dfc65" xlink:to="loc_us-gaap_ProfitLoss_d857fc0f-ad5c-44bb-acc0-20f6ced5d27e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax_9f913102-40da-49d0-948a-025dad2c5939" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_56c5297f-379a-40f0-be71-3a3fa49dfc65" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax_9f913102-40da-49d0-948a-025dad2c5939" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_3ef74347-feba-4856-b203-ca0fd6da226f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_56c5297f-379a-40f0-be71-3a3fa49dfc65" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_3ef74347-feba-4856-b203-ca0fd6da226f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax_2adeecfe-2a36-487d-977d-53c73339b69f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_d6d65c11-1b88-4c23-aee6-b0709e68dcf6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax_2adeecfe-2a36-487d-977d-53c73339b69f" xlink:to="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_d6d65c11-1b88-4c23-aee6-b0709e68dcf6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax_4ba50a86-356b-49dc-9791-7578ff582987" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax_2adeecfe-2a36-487d-977d-53c73339b69f" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax_4ba50a86-356b-49dc-9791-7578ff582987" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://bsprealtytrust.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="simple" xlink:href="bsprt-20250930.xsd#CONSOLIDATEDSTATEMENTSOFCASHFLOWS"/>
  <link:calculationLink xlink:role="http://bsprealtytrust.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_4bf190db-b59a-4354-a851-88b1496a4016" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_4630a567-6363-471f-8ca0-c684397dc4a9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_4bf190db-b59a-4354-a851-88b1496a4016" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_4630a567-6363-471f-8ca0-c684397dc4a9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_cf1bd6a0-7b9b-46db-ac21-b4901aedee13" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.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_4bf190db-b59a-4354-a851-88b1496a4016" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_cf1bd6a0-7b9b-46db-ac21-b4901aedee13" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_f416b18a-a5e1-48a4-8730-00913a16f91b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_4bf190db-b59a-4354-a851-88b1496a4016" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_f416b18a-a5e1-48a4-8730-00913a16f91b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_572c0dd0-9928-4ebe-847f-99b68c433af2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_a2b502db-7ac6-40d8-aa35-5d20f9877e48" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_572c0dd0-9928-4ebe-847f-99b68c433af2" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_a2b502db-7ac6-40d8-aa35-5d20f9877e48" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalents_1231d061-f16c-4630-8387-0a1abde86e3c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestrictedCashAndCashEquivalents"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_572c0dd0-9928-4ebe-847f-99b68c433af2" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalents_1231d061-f16c-4630-8387-0a1abde86e3c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_0cbcfc95-4c64-4774-8152-96cd807d28d4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_363ceb0c-0d0c-461f-9db9-1f56d8d2f6ab" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_0cbcfc95-4c64-4774-8152-96cd807d28d4" xlink:to="loc_us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_363ceb0c-0d0c-461f-9db9-1f56d8d2f6ab" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForProceedsFromDerivativeInstrumentInvestingActivities_55b4e6e8-166e-4785-9c90-512382b75152" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsForProceedsFromDerivativeInstrumentInvestingActivities"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_0cbcfc95-4c64-4774-8152-96cd807d28d4" xlink:to="loc_us-gaap_PaymentsForProceedsFromDerivativeInstrumentInvestingActivities_55b4e6e8-166e-4785-9c90-512382b75152" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfOtherRealEstate_eac8443b-20c9-44ab-a3ae-312aeeace3bc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromSaleOfOtherRealEstate"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_0cbcfc95-4c64-4774-8152-96cd807d28d4" xlink:to="loc_us-gaap_ProceedsFromSaleOfOtherRealEstate_eac8443b-20c9-44ab-a3ae-312aeeace3bc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt_d858b15e-37a9-4f3c-98c2-700cf440a4a1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_0cbcfc95-4c64-4774-8152-96cd807d28d4" xlink:to="loc_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt_d858b15e-37a9-4f3c-98c2-700cf440a4a1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireFinanceReceivables_3609e4db-2ec0-4aea-b334-2fff382cdbde" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToAcquireFinanceReceivables"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_0cbcfc95-4c64-4774-8152-96cd807d28d4" xlink:to="loc_us-gaap_PaymentsToAcquireFinanceReceivables_3609e4db-2ec0-4aea-b334-2fff382cdbde" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromCollectionOfLoansReceivable_afb5dd87-ac65-4530-a65a-af11f8d381e4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromCollectionOfLoansReceivable"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_0cbcfc95-4c64-4774-8152-96cd807d28d4" xlink:to="loc_us-gaap_ProceedsFromCollectionOfLoansReceivable_afb5dd87-ac65-4530-a65a-af11f8d381e4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_PaymentsToAcquireRealEstateOwned_1a8d70a6-4429-48ab-b2df-5800da275eb2" xlink:href="bsprt-20250930.xsd#bsprt_PaymentsToAcquireRealEstateOwned"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_0cbcfc95-4c64-4774-8152-96cd807d28d4" xlink:to="loc_bsprt_PaymentsToAcquireRealEstateOwned_1a8d70a6-4429-48ab-b2df-5800da275eb2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireEquityMethodInvestments_a34556fd-da10-4fc7-82b1-5729c8b12136" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToAcquireEquityMethodInvestments"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_0cbcfc95-4c64-4774-8152-96cd807d28d4" xlink:to="loc_us-gaap_PaymentsToAcquireEquityMethodInvestments_a34556fd-da10-4fc7-82b1-5729c8b12136" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_ProceedsFromSaleOfCommercialMortgageLoansHeldForInvestment_6cc9791b-5c78-45d2-ac82-06b5140e86ca" xlink:href="bsprt-20250930.xsd#bsprt_ProceedsFromSaleOfCommercialMortgageLoansHeldForInvestment"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_0cbcfc95-4c64-4774-8152-96cd807d28d4" xlink:to="loc_bsprt_ProceedsFromSaleOfCommercialMortgageLoansHeldForInvestment_6cc9791b-5c78-45d2-ac82-06b5140e86ca" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital_2e754ce7-ee1c-471d-996f-14dbeed1f1da" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_0cbcfc95-4c64-4774-8152-96cd807d28d4" xlink:to="loc_us-gaap_ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital_2e754ce7-ee1c-471d-996f-14dbeed1f1da" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross_87ce0112-214c-46ca-b693-32c1bb981c00" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToAcquireBusinessesGross"/>
    <link:calculationArc order="11" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_0cbcfc95-4c64-4774-8152-96cd807d28d4" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesGross_87ce0112-214c-46ca-b693-32c1bb981c00" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToDevelopSoftware_d1da7a23-d679-436e-b158-05bb7348fde3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToDevelopSoftware"/>
    <link:calculationArc order="12" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_0cbcfc95-4c64-4774-8152-96cd807d28d4" xlink:to="loc_us-gaap_PaymentsToDevelopSoftware_d1da7a23-d679-436e-b158-05bb7348fde3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_PurchasesOfPledgedInvestmentSecurities_4966ea51-528f-44b1-8d80-be913aac6358" xlink:href="bsprt-20250930.xsd#bsprt_PurchasesOfPledgedInvestmentSecurities"/>
    <link:calculationArc order="13" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_0cbcfc95-4c64-4774-8152-96cd807d28d4" xlink:to="loc_bsprt_PurchasesOfPledgedInvestmentSecurities_4966ea51-528f-44b1-8d80-be913aac6358" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_SalesOfPledgedInvestmentSecurities_598c1565-b677-48de-8c22-949375f4c020" xlink:href="bsprt-20250930.xsd#bsprt_SalesOfPledgedInvestmentSecurities"/>
    <link:calculationArc order="14" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_0cbcfc95-4c64-4774-8152-96cd807d28d4" xlink:to="loc_bsprt_SalesOfPledgedInvestmentSecurities_598c1565-b677-48de-8c22-949375f4c020" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d21cfad2-6189-41b6-8eb1-b60b8c407da0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_97ead15f-62b1-41e7-9dc8-359d9ad0fe3d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.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_NetCashProvidedByUsedInOperatingActivities_d21cfad2-6189-41b6-8eb1-b60b8c407da0" xlink:to="loc_us-gaap_ProfitLoss_97ead15f-62b1-41e7-9dc8-359d9ad0fe3d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments_32c7a206-8c5c-44d6-b5e5-3e4fe3c41812" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d21cfad2-6189-41b6-8eb1-b60b8c407da0" xlink:to="loc_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments_32c7a206-8c5c-44d6-b5e5-3e4fe3c41812" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfDeferredLoanOriginationFeesNet_02f9f45f-4b37-48e9-98ec-40dbc8e65b6b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AmortizationOfDeferredLoanOriginationFeesNet"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d21cfad2-6189-41b6-8eb1-b60b8c407da0" xlink:to="loc_us-gaap_AmortizationOfDeferredLoanOriginationFeesNet_02f9f45f-4b37-48e9-98ec-40dbc8e65b6b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfFinancingCosts_41638b02-e520-41d3-837a-31f25d1c80c6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AmortizationOfFinancingCosts"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d21cfad2-6189-41b6-8eb1-b60b8c407da0" xlink:to="loc_us-gaap_AmortizationOfFinancingCosts_41638b02-e520-41d3-837a-31f25d1c80c6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_5704f9b5-c7a4-4cef-9f35-8505bad8afe2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensation"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d21cfad2-6189-41b6-8eb1-b60b8c407da0" xlink:to="loc_us-gaap_ShareBasedCompensation_5704f9b5-c7a4-4cef-9f35-8505bad8afe2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_DebtSecuritiesAvailableForSaleTradingGainLoss_822b52bb-15e2-4447-a87c-c32e1a57dd2a" xlink:href="bsprt-20250930.xsd#bsprt_DebtSecuritiesAvailableForSaleTradingGainLoss"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d21cfad2-6189-41b6-8eb1-b60b8c407da0" xlink:to="loc_bsprt_DebtSecuritiesAvailableForSaleTradingGainLoss_822b52bb-15e2-4447-a87c-c32e1a57dd2a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_RealizedGainLossOnSaleOfMortgageLoansHeldForSaleMeasuredAtFairValue_4fc508c6-b17f-47d7-b3f9-5a6ae2afd4a8" xlink:href="bsprt-20250930.xsd#bsprt_RealizedGainLossOnSaleOfMortgageLoansHeldForSaleMeasuredAtFairValue"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d21cfad2-6189-41b6-8eb1-b60b8c407da0" xlink:to="loc_bsprt_RealizedGainLossOnSaleOfMortgageLoansHeldForSaleMeasuredAtFairValue_4fc508c6-b17f-47d7-b3f9-5a6ae2afd4a8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_aa2e0ff9-1d7f-40c8-aa1e-5d8a615151de" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromEquityMethodInvestments"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d21cfad2-6189-41b6-8eb1-b60b8c407da0" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_aa2e0ff9-1d7f-40c8-aa1e-5d8a615151de" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1_4ecb5c27-1fe2-4371-9661-0f5439b078a4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1"/>
    <link:calculationArc order="9" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d21cfad2-6189-41b6-8eb1-b60b8c407da0" xlink:to="loc_us-gaap_ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1_4ecb5c27-1fe2-4371-9661-0f5439b078a4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_ChangeinUnrealizedGainLossOnOtherRealEstateOwned_d43b00df-451c-4f54-9bea-2a153a7df6d9" xlink:href="bsprt-20250930.xsd#bsprt_ChangeinUnrealizedGainLossOnOtherRealEstateOwned"/>
    <link:calculationArc order="10" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d21cfad2-6189-41b6-8eb1-b60b8c407da0" xlink:to="loc_bsprt_ChangeinUnrealizedGainLossOnOtherRealEstateOwned_d43b00df-451c-4f54-9bea-2a153a7df6d9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_864e3f33-ca9f-48c5-aa57-4e99d2678f85" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:calculationArc order="11" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d21cfad2-6189-41b6-8eb1-b60b8c407da0" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_864e3f33-ca9f-48c5-aa57-4e99d2678f85" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StraightLineRent_242b4fd7-3602-4d29-b89b-bbabda7f14de" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StraightLineRent"/>
    <link:calculationArc order="12" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d21cfad2-6189-41b6-8eb1-b60b8c407da0" xlink:to="loc_us-gaap_StraightLineRent_242b4fd7-3602-4d29-b89b-bbabda7f14de" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal_653ab530-0ebd-4426-a5f9-81de0ed870d2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal"/>
    <link:calculationArc order="13" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d21cfad2-6189-41b6-8eb1-b60b8c407da0" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal_653ab530-0ebd-4426-a5f9-81de0ed870d2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForOriginationOfMortgageLoansHeldForSale_4c4e7638-5fd3-4222-b470-a4845e83ac1e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsForOriginationOfMortgageLoansHeldForSale"/>
    <link:calculationArc order="14" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d21cfad2-6189-41b6-8eb1-b60b8c407da0" xlink:to="loc_us-gaap_PaymentsForOriginationOfMortgageLoansHeldForSale_4c4e7638-5fd3-4222-b470-a4845e83ac1e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfMortgageLoansHeldForSale_816ddcfb-3ddc-4563-9b47-7f448876aa88" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromSaleOfMortgageLoansHeldForSale"/>
    <link:calculationArc order="15" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d21cfad2-6189-41b6-8eb1-b60b8c407da0" xlink:to="loc_us-gaap_ProceedsFromSaleOfMortgageLoansHeldForSale_816ddcfb-3ddc-4563-9b47-7f448876aa88" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestmentDividendsOrDistributions_8026ca52-fdf9-408d-8706-c0d95534f690" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityMethodInvestmentDividendsOrDistributions"/>
    <link:calculationArc order="16" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d21cfad2-6189-41b6-8eb1-b60b8c407da0" xlink:to="loc_us-gaap_EquityMethodInvestmentDividendsOrDistributions_8026ca52-fdf9-408d-8706-c0d95534f690" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_ImpairmentAndAmortizationOfMortgageServicingRightsMSR_83d69e80-60a0-4b51-86af-4c1a7f6d59be" xlink:href="bsprt-20250930.xsd#bsprt_ImpairmentAndAmortizationOfMortgageServicingRightsMSR"/>
    <link:calculationArc order="17" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d21cfad2-6189-41b6-8eb1-b60b8c407da0" xlink:to="loc_bsprt_ImpairmentAndAmortizationOfMortgageServicingRightsMSR_83d69e80-60a0-4b51-86af-4c1a7f6d59be" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_GainLossOnMortgageBankingActivitiesNet_ff35be94-455f-43a3-a16f-5c5f54d5b788" xlink:href="bsprt-20250930.xsd#bsprt_GainLossOnMortgageBankingActivitiesNet"/>
    <link:calculationArc order="18" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d21cfad2-6189-41b6-8eb1-b60b8c407da0" xlink:to="loc_bsprt_GainLossOnMortgageBankingActivitiesNet_ff35be94-455f-43a3-a16f-5c5f54d5b788" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet_9f462518-9da1-4c4c-b356-32bbd6d0f2bd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet"/>
    <link:calculationArc order="19" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d21cfad2-6189-41b6-8eb1-b60b8c407da0" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet_9f462518-9da1-4c4c-b356-32bbd6d0f2bd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_36a83f1d-83a2-4e87-8ec5-d3b3e5ccc783" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets"/>
    <link:calculationArc order="20" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d21cfad2-6189-41b6-8eb1-b60b8c407da0" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_36a83f1d-83a2-4e87-8ec5-d3b3e5ccc783" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_583b7f84-ff4f-45f0-9e7c-af23c7999417" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities"/>
    <link:calculationArc order="21" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d21cfad2-6189-41b6-8eb1-b60b8c407da0" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_583b7f84-ff4f-45f0-9e7c-af23c7999417" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInDueToAffiliates_f5363567-056f-4e0d-8396-cfb2637f8658" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInDueToAffiliates"/>
    <link:calculationArc order="22" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d21cfad2-6189-41b6-8eb1-b60b8c407da0" xlink:to="loc_us-gaap_IncreaseDecreaseInDueToAffiliates_f5363567-056f-4e0d-8396-cfb2637f8658" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInterestPayableNet_09f71445-dfd2-4641-8165-8ada7ac86d2e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInInterestPayableNet"/>
    <link:calculationArc order="23" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d21cfad2-6189-41b6-8eb1-b60b8c407da0" xlink:to="loc_us-gaap_IncreaseDecreaseInInterestPayableNet_09f71445-dfd2-4641-8165-8ada7ac86d2e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedSalaries_03113da5-2bd9-4919-b36e-eec6ec821997" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccruedSalaries"/>
    <link:calculationArc order="24" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d21cfad2-6189-41b6-8eb1-b60b8c407da0" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedSalaries_03113da5-2bd9-4919-b36e-eec6ec821997" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_674b71f4-d7ce-42c9-adc3-228cad2c598a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInOtherOperatingLiabilities"/>
    <link:calculationArc order="25" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d21cfad2-6189-41b6-8eb1-b60b8c407da0" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_674b71f4-d7ce-42c9-adc3-228cad2c598a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_OriginationAndPurchaseOfCommercialMortgageLoansHeldForSale_e54a8821-e796-4566-8fa2-be48543ff16b" xlink:href="bsprt-20250930.xsd#bsprt_OriginationAndPurchaseOfCommercialMortgageLoansHeldForSale"/>
    <link:calculationArc order="26" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d21cfad2-6189-41b6-8eb1-b60b8c407da0" xlink:to="loc_bsprt_OriginationAndPurchaseOfCommercialMortgageLoansHeldForSale_e54a8821-e796-4566-8fa2-be48543ff16b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_2278322c-60fd-4d82-852b-105f978d4242" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfSecuredDebt_1e479b47-7c53-46c7-9889-4b48bfc04eb0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RepaymentsOfSecuredDebt"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_2278322c-60fd-4d82-852b-105f978d4242" xlink:to="loc_us-gaap_RepaymentsOfSecuredDebt_1e479b47-7c53-46c7-9889-4b48bfc04eb0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_PaymentsFromSecuritiesPurchasedUnderAgreementsToResellLoansReceivable_248a9d67-38eb-4010-80de-7c9b194e0bab" xlink:href="bsprt-20250930.xsd#bsprt_PaymentsFromSecuritiesPurchasedUnderAgreementsToResellLoansReceivable"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_2278322c-60fd-4d82-852b-105f978d4242" xlink:to="loc_bsprt_PaymentsFromSecuritiesPurchasedUnderAgreementsToResellLoansReceivable_248a9d67-38eb-4010-80de-7c9b194e0bab" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_ProceedsFromSecuritiesPurchasedUnderAgreementsToResellLoansReceivable_8f5375b1-bb56-4120-bca3-396b06fd8ac0" xlink:href="bsprt-20250930.xsd#bsprt_ProceedsFromSecuritiesPurchasedUnderAgreementsToResellLoansReceivable"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_2278322c-60fd-4d82-852b-105f978d4242" xlink:to="loc_bsprt_ProceedsFromSecuritiesPurchasedUnderAgreementsToResellLoansReceivable_8f5375b1-bb56-4120-bca3-396b06fd8ac0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfOtherDebt_ea3bdcac-a191-48e2-85e1-5c96baee883b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RepaymentsOfOtherDebt"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_2278322c-60fd-4d82-852b-105f978d4242" xlink:to="loc_us-gaap_RepaymentsOfOtherDebt_ea3bdcac-a191-48e2-85e1-5c96baee883b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_f918a946-1db1-4a8b-b9a0-74592b445e46" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_2278322c-60fd-4d82-852b-105f978d4242" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_f918a946-1db1-4a8b-b9a0-74592b445e46" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_3ee12c81-576e-4ac3-9074-edd286a2e113" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_2278322c-60fd-4d82-852b-105f978d4242" xlink:to="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_3ee12c81-576e-4ac3-9074-edd286a2e113" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfSecuredDebt_9e3a9b8b-1b31-4520-ba76-c688454c5ac4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromIssuanceOfSecuredDebt"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_2278322c-60fd-4d82-852b-105f978d4242" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfSecuredDebt_9e3a9b8b-1b31-4520-ba76-c688454c5ac4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividends_2a49deb9-bc13-417c-b9fa-2fa9cca40b6f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsOfDividends"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_2278322c-60fd-4d82-852b-105f978d4242" xlink:to="loc_us-gaap_PaymentsOfDividends_2a49deb9-bc13-417c-b9fa-2fa9cca40b6f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfFinancingCosts_3f5c4912-c5e2-48f8-a8e2-2ac00a22bdfb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsOfFinancingCosts"/>
    <link:calculationArc order="9" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_2278322c-60fd-4d82-852b-105f978d4242" xlink:to="loc_us-gaap_PaymentsOfFinancingCosts_3f5c4912-c5e2-48f8-a8e2-2ac00a22bdfb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_ProceedsFromRepaymentOfRealEstateSecurityRepurchaseAgreements_7ea7519c-ed90-4ee2-a003-2747bdff8cf9" xlink:href="bsprt-20250930.xsd#bsprt_ProceedsFromRepaymentOfRealEstateSecurityRepurchaseAgreements"/>
    <link:calculationArc order="10" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_2278322c-60fd-4d82-852b-105f978d4242" xlink:to="loc_bsprt_ProceedsFromRepaymentOfRealEstateSecurityRepurchaseAgreements_7ea7519c-ed90-4ee2-a003-2747bdff8cf9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToMinorityShareholders_155f482e-951d-4da8-8d45-ea0604fc2510" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToMinorityShareholders"/>
    <link:calculationArc order="11" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_2278322c-60fd-4d82-852b-105f978d4242" xlink:to="loc_us-gaap_PaymentsToMinorityShareholders_155f482e-951d-4da8-8d45-ea0604fc2510" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfUnsecuredDebt_c7d4f208-4f77-4bb6-ba2d-873b8beeb508" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromIssuanceOfUnsecuredDebt"/>
    <link:calculationArc order="12" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_2278322c-60fd-4d82-852b-105f978d4242" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfUnsecuredDebt_c7d4f208-4f77-4bb6-ba2d-873b8beeb508" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromMinorityShareholders_77efba4e-b24c-42d9-9325-b189c727a088" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromMinorityShareholders"/>
    <link:calculationArc order="13" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_2278322c-60fd-4d82-852b-105f978d4242" xlink:to="loc_us-gaap_ProceedsFromMinorityShareholders_77efba4e-b24c-42d9-9325-b189c727a088" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://bsprealtytrust.com/role/BusinessCombinationsPurchaseConsiderationDetails" xlink:type="simple" xlink:href="bsprt-20250930.xsd#BusinessCombinationsPurchaseConsiderationDetails"/>
  <link:calculationLink xlink:role="http://bsprealtytrust.com/role/BusinessCombinationsPurchaseConsiderationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_9e156b0c-3478-419d-9035-088c2d686c1f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_9044b8a7-3912-42c4-8a2d-e89b45701522" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_9e156b0c-3478-419d-9035-088c2d686c1f" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_9044b8a7-3912-42c4-8a2d-e89b45701522" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_BusinessCombinationRecognizedAssetAcquiredRestrictedCash_4c3f9631-20a8-4bca-8463-1ca5450b9a96" xlink:href="bsprt-20250930.xsd#bsprt_BusinessCombinationRecognizedAssetAcquiredRestrictedCash"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_9e156b0c-3478-419d-9035-088c2d686c1f" xlink:to="loc_bsprt_BusinessCombinationRecognizedAssetAcquiredRestrictedCash_4c3f9631-20a8-4bca-8463-1ca5450b9a96" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_BusinessCombinationRecognizedAssetAcquiredRestrictedInvestmentSecurities_b7607895-aae0-4625-9087-c58131c07591" xlink:href="bsprt-20250930.xsd#bsprt_BusinessCombinationRecognizedAssetAcquiredRestrictedInvestmentSecurities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_9e156b0c-3478-419d-9035-088c2d686c1f" xlink:to="loc_bsprt_BusinessCombinationRecognizedAssetAcquiredRestrictedInvestmentSecurities_b7607895-aae0-4625-9087-c58131c07591" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_BusinessCombinationRecognizedAssetAcquiredMortgagesHeldForSaleFairValueDisclosure_03fa375f-80c3-4c73-8516-b67d926d1380" xlink:href="bsprt-20250930.xsd#bsprt_BusinessCombinationRecognizedAssetAcquiredMortgagesHeldForSaleFairValueDisclosure"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_9e156b0c-3478-419d-9035-088c2d686c1f" xlink:to="loc_bsprt_BusinessCombinationRecognizedAssetAcquiredMortgagesHeldForSaleFairValueDisclosure_03fa375f-80c3-4c73-8516-b67d926d1380" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_BusinessCombinationRecognizedAssetAcquiredMortgageServicingRightsNet_3331594c-b6b5-4a43-8536-68d3bb822c29" xlink:href="bsprt-20250930.xsd#bsprt_BusinessCombinationRecognizedAssetAcquiredMortgageServicingRightsNet"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_9e156b0c-3478-419d-9035-088c2d686c1f" xlink:to="loc_bsprt_BusinessCombinationRecognizedAssetAcquiredMortgageServicingRightsNet_3331594c-b6b5-4a43-8536-68d3bb822c29" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_BusinessCombinationRecognizedAssetAcquiredDerivativeAssets_94e0fcbc-872e-4e1b-a093-61daba0d6fb8" xlink:href="bsprt-20250930.xsd#bsprt_BusinessCombinationRecognizedAssetAcquiredDerivativeAssets"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_9e156b0c-3478-419d-9035-088c2d686c1f" xlink:to="loc_bsprt_BusinessCombinationRecognizedAssetAcquiredDerivativeAssets_94e0fcbc-872e-4e1b-a093-61daba0d6fb8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets_49045dbf-152f-4215-a9f5-9663654d23ac" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_9e156b0c-3478-419d-9035-088c2d686c1f" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets_49045dbf-152f-4215-a9f5-9663654d23ac" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsMarketableSecurities_166b50c1-8066-4467-a7b7-74361be1e718" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsMarketableSecurities"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_9e156b0c-3478-419d-9035-088c2d686c1f" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsMarketableSecurities_166b50c1-8066-4467-a7b7-74361be1e718" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_BusinessCombinationRecognizedAssetAcquiredLoanRepurchaseOptionAsset_414680b1-c399-4ee4-9955-334ef735aac5" xlink:href="bsprt-20250930.xsd#bsprt_BusinessCombinationRecognizedAssetAcquiredLoanRepurchaseOptionAsset"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_9e156b0c-3478-419d-9035-088c2d686c1f" xlink:to="loc_bsprt_BusinessCombinationRecognizedAssetAcquiredLoanRepurchaseOptionAsset_414680b1-c399-4ee4-9955-334ef735aac5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_BusinessCombinationRecognizedAssetAcquiredIntangibleAssetsNetOfAmortization_1a7b6c13-07e3-42c5-b325-fad67c5aa5e9" xlink:href="bsprt-20250930.xsd#bsprt_BusinessCombinationRecognizedAssetAcquiredIntangibleAssetsNetOfAmortization"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_9e156b0c-3478-419d-9035-088c2d686c1f" xlink:to="loc_bsprt_BusinessCombinationRecognizedAssetAcquiredIntangibleAssetsNetOfAmortization_1a7b6c13-07e3-42c5-b325-fad67c5aa5e9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_814ad222-16b0-4dd2-a50a-bd7be6a32dbd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="11" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_9e156b0c-3478-419d-9035-088c2d686c1f" xlink:to="loc_us-gaap_Goodwill_814ad222-16b0-4dd2-a50a-bd7be6a32dbd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_BusinessCombinationRecognizedAssetAcquiredAccruedInterestReceivable_9d63b22a-337c-4197-9311-ac19b2ba6503" xlink:href="bsprt-20250930.xsd#bsprt_BusinessCombinationRecognizedAssetAcquiredAccruedInterestReceivable"/>
    <link:calculationArc order="12" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_9e156b0c-3478-419d-9035-088c2d686c1f" xlink:to="loc_bsprt_BusinessCombinationRecognizedAssetAcquiredAccruedInterestReceivable_9d63b22a-337c-4197-9311-ac19b2ba6503" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_2e03807c-79b4-438f-999d-17049f3c699d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_BusinessCombinationRecognizedLiabilityAssumedRepurchaseAgreementsCommercialMortgageLoans_009941d8-7160-47fc-a9fb-e567b7f2fd34" xlink:href="bsprt-20250930.xsd#bsprt_BusinessCombinationRecognizedLiabilityAssumedRepurchaseAgreementsCommercialMortgageLoans"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_2e03807c-79b4-438f-999d-17049f3c699d" xlink:to="loc_bsprt_BusinessCombinationRecognizedLiabilityAssumedRepurchaseAgreementsCommercialMortgageLoans_009941d8-7160-47fc-a9fb-e567b7f2fd34" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_BusinessCombinationRecognizedLiabilityAssumedAllowanceForLossSharing_3e63909c-af8a-4c10-9ccb-8016164eb1f1" xlink:href="bsprt-20250930.xsd#bsprt_BusinessCombinationRecognizedLiabilityAssumedAllowanceForLossSharing"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_2e03807c-79b4-438f-999d-17049f3c699d" xlink:to="loc_bsprt_BusinessCombinationRecognizedLiabilityAssumedAllowanceForLossSharing_3e63909c-af8a-4c10-9ccb-8016164eb1f1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_BusinessCombinationRecognizedLiabilityAssumedAccruedCompensation_be2510be-234b-4f99-a24a-674439952982" xlink:href="bsprt-20250930.xsd#bsprt_BusinessCombinationRecognizedLiabilityAssumedAccruedCompensation"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_2e03807c-79b4-438f-999d-17049f3c699d" xlink:to="loc_bsprt_BusinessCombinationRecognizedLiabilityAssumedAccruedCompensation_be2510be-234b-4f99-a24a-674439952982" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_BusinessCombinationRecognizedLiabilityAssumedLoanRepurchaseOptionLiability_4f7fbe78-9093-4a64-be64-f746571988c0" xlink:href="bsprt-20250930.xsd#bsprt_BusinessCombinationRecognizedLiabilityAssumedLoanRepurchaseOptionLiability"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_2e03807c-79b4-438f-999d-17049f3c699d" xlink:to="loc_bsprt_BusinessCombinationRecognizedLiabilityAssumedLoanRepurchaseOptionLiability_4f7fbe78-9093-4a64-be64-f746571988c0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther_05893d69-fc5b-44a0-b586-4383cf895617" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_2e03807c-79b4-438f-999d-17049f3c699d" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther_05893d69-fc5b-44a0-b586-4383cf895617" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_BusinessCombinationRecognizedLiabilityAssumedInterestPayable_35c8c712-7ef5-40c3-a89f-272bf2127ff6" xlink:href="bsprt-20250930.xsd#bsprt_BusinessCombinationRecognizedLiabilityAssumedInterestPayable"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_2e03807c-79b4-438f-999d-17049f3c699d" xlink:to="loc_bsprt_BusinessCombinationRecognizedLiabilityAssumedInterestPayable_35c8c712-7ef5-40c3-a89f-272bf2127ff6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_BusinessCombinationRecognizedLiabilityAssumedAccountsPayableAndAccruedExpensesCurrent_9ba7d442-09dc-439d-9076-187dbb609c51" xlink:href="bsprt-20250930.xsd#bsprt_BusinessCombinationRecognizedLiabilityAssumedAccountsPayableAndAccruedExpensesCurrent"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_2e03807c-79b4-438f-999d-17049f3c699d" xlink:to="loc_bsprt_BusinessCombinationRecognizedLiabilityAssumedAccountsPayableAndAccruedExpensesCurrent_9ba7d442-09dc-439d-9076-187dbb609c51" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedLessNoncontrollingInterest_3d13248b-72f1-4772-84c5-0fb0e56a3021" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedLessNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_45bece7b-deef-4675-b1e6-553f16f9b630" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedLessNoncontrollingInterest_3d13248b-72f1-4772-84c5-0fb0e56a3021" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_45bece7b-deef-4675-b1e6-553f16f9b630" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_60bdc165-7fc9-4779-b55e-1a19457948c9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedLessNoncontrollingInterest_3d13248b-72f1-4772-84c5-0fb0e56a3021" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_60bdc165-7fc9-4779-b55e-1a19457948c9" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://bsprealtytrust.com/role/CommercialMortgageLoansHeldforInvestmentScheduleofCommercialMortgageLoanPortfolioHeldForInvestmentDetails" xlink:type="simple" xlink:href="bsprt-20250930.xsd#CommercialMortgageLoansHeldforInvestmentScheduleofCommercialMortgageLoanPortfolioHeldForInvestmentDetails"/>
  <link:calculationLink xlink:role="http://bsprealtytrust.com/role/CommercialMortgageLoansHeldforInvestmentScheduleofCommercialMortgageLoanPortfolioHeldForInvestmentDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss_bcd6169f-addb-4abd-a1db-9a105f6e7194" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MortgageLoansOnRealEstateCommercialAndConsumerNet_d6f90787-52b6-4480-9970-785e1dbbcf90" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MortgageLoansOnRealEstateCommercialAndConsumerNet"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss_bcd6169f-addb-4abd-a1db-9a105f6e7194" xlink:to="loc_us-gaap_MortgageLoansOnRealEstateCommercialAndConsumerNet_d6f90787-52b6-4480-9970-785e1dbbcf90" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest_5e43fb11-cdf6-4534-9123-38bc95df6e53" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss_bcd6169f-addb-4abd-a1db-9a105f6e7194" xlink:to="loc_us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest_5e43fb11-cdf6-4534-9123-38bc95df6e53" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://bsprealtytrust.com/role/CommercialMortgageLoansHeldforInvestmentScheduleofAllocationbyRiskRatingDetails" xlink:type="simple" xlink:href="bsprt-20250930.xsd#CommercialMortgageLoansHeldforInvestmentScheduleofAllocationbyRiskRatingDetails"/>
  <link:calculationLink xlink:role="http://bsprealtytrust.com/role/CommercialMortgageLoansHeldforInvestmentScheduleofAllocationbyRiskRatingDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss_3e35f027-15db-4718-bfb7-23a5efaad767" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear_bf4b2b9a-df9f-45b7-9f7c-c3631b19b585" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss_3e35f027-15db-4718-bfb7-23a5efaad767" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear_bf4b2b9a-df9f-45b7-9f7c-c3631b19b585" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear_f5953893-2e03-4a08-87ba-cf76452439be" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss_3e35f027-15db-4718-bfb7-23a5efaad767" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear_f5953893-2e03-4a08-87ba-cf76452439be" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear_5b3b81cb-a635-413d-801d-8846fd59e1cf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss_3e35f027-15db-4718-bfb7-23a5efaad767" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear_5b3b81cb-a635-413d-801d-8846fd59e1cf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear_a0996026-d459-43e3-a42c-2e762684bcfd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss_3e35f027-15db-4718-bfb7-23a5efaad767" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear_a0996026-d459-43e3-a42c-2e762684bcfd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear_bbf19ed3-b452-4d2b-ab0c-dd3035ff5144" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss_3e35f027-15db-4718-bfb7-23a5efaad767" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear_bbf19ed3-b452-4d2b-ab0c-dd3035ff5144" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear_ee29afd7-544a-4921-8757-75b436fd8592" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss_3e35f027-15db-4718-bfb7-23a5efaad767" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear_ee29afd7-544a-4921-8757-75b436fd8592" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://bsprealtytrust.com/role/MortgageServicingRightsScheduleofExpectedAmortizationofMSRsDetails" xlink:type="simple" xlink:href="bsprt-20250930.xsd#MortgageServicingRightsScheduleofExpectedAmortizationofMSRsDetails"/>
  <link:calculationLink xlink:role="http://bsprealtytrust.com/role/MortgageServicingRightsScheduleofExpectedAmortizationofMSRsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_33f485b1-903f-4c94-840d-267f88c01359" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_090cee0c-ba07-4b2f-9193-01b1b8de9146" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_33f485b1-903f-4c94-840d-267f88c01359" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_090cee0c-ba07-4b2f-9193-01b1b8de9146" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_26ea8f0b-da91-46ed-bc5b-705dea126057" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_33f485b1-903f-4c94-840d-267f88c01359" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_26ea8f0b-da91-46ed-bc5b-705dea126057" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_2660a7d1-7512-4073-b5f9-d39eb8a358d5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_33f485b1-903f-4c94-840d-267f88c01359" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_2660a7d1-7512-4073-b5f9-d39eb8a358d5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_8703ed64-18f2-4296-b4b4-5d463b897678" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_33f485b1-903f-4c94-840d-267f88c01359" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_8703ed64-18f2-4296-b4b4-5d463b897678" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_63b73c32-2310-4eab-a3c3-73976d5842b7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_33f485b1-903f-4c94-840d-267f88c01359" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_63b73c32-2310-4eab-a3c3-73976d5842b7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFour_870590b7-efc6-4077-97aa-c48e27b2ec76" xlink:href="bsprt-20250930.xsd#bsprt_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFour"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_33f485b1-903f-4c94-840d-267f88c01359" xlink:to="loc_bsprt_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFour_870590b7-efc6-4077-97aa-c48e27b2ec76" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://bsprealtytrust.com/role/RealEstateSecuritiesScheduleofAmortizedCostandFairValueofCLOBondsDetails" xlink:type="simple" xlink:href="bsprt-20250930.xsd#RealEstateSecuritiesScheduleofAmortizedCostandFairValueofCLOBondsDetails"/>
  <link:calculationLink xlink:role="http://bsprealtytrust.com/role/RealEstateSecuritiesScheduleofAmortizedCostandFairValueofCLOBondsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss_0f5cec80-9663-46bd-acc6-344e1b192517" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_7f22fa14-99c6-4c12-aa19-0986ec8c977c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss_0f5cec80-9663-46bd-acc6-344e1b192517" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_7f22fa14-99c6-4c12-aa19-0986ec8c977c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_a1925ad1-0026-4f5d-b0d8-fe190ff6f922" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss_0f5cec80-9663-46bd-acc6-344e1b192517" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_a1925ad1-0026-4f5d-b0d8-fe190ff6f922" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_445b4b36-dbee-4e70-9ae7-559c2aaa6224" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss_0f5cec80-9663-46bd-acc6-344e1b192517" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_445b4b36-dbee-4e70-9ae7-559c2aaa6224" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://bsprealtytrust.com/role/RealEstateOwnedScheduleofRealEstateOwnedHeldForInvestmentDetails" xlink:type="simple" xlink:href="bsprt-20250930.xsd#RealEstateOwnedScheduleofRealEstateOwnedHeldForInvestmentDetails"/>
  <link:calculationLink xlink:role="http://bsprealtytrust.com/role/RealEstateOwnedScheduleofRealEstateOwnedHeldForInvestmentDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_RealEstateOwnedHeldForInvestmentNet_d5fc59b4-eae2-46a6-9f0c-996b08439bc9" xlink:href="bsprt-20250930.xsd#bsprt_RealEstateOwnedHeldForInvestmentNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_RealEstateOwnedHeldForInvestmentGross_84bfcc35-c023-4ed7-9adc-e69dc3186f68" xlink:href="bsprt-20250930.xsd#bsprt_RealEstateOwnedHeldForInvestmentGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_bsprt_RealEstateOwnedHeldForInvestmentNet_d5fc59b4-eae2-46a6-9f0c-996b08439bc9" xlink:to="loc_bsprt_RealEstateOwnedHeldForInvestmentGross_84bfcc35-c023-4ed7-9adc-e69dc3186f68" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateOwnedAccumulatedDepreciation_9f8ed708-a759-4a6b-a668-f6d2d617db28" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateOwnedAccumulatedDepreciation"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_bsprt_RealEstateOwnedHeldForInvestmentNet_d5fc59b4-eae2-46a6-9f0c-996b08439bc9" xlink:to="loc_us-gaap_RealEstateOwnedAccumulatedDepreciation_9f8ed708-a759-4a6b-a668-f6d2d617db28" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://bsprealtytrust.com/role/EquityMethodInvestmentsScheduleofCombinedFinancialPositionDetails" xlink:type="simple" xlink:href="bsprt-20250930.xsd#EquityMethodInvestmentsScheduleofCombinedFinancialPositionDetails"/>
  <link:calculationLink xlink:role="http://bsprealtytrust.com/role/EquityMethodInvestmentsScheduleofCombinedFinancialPositionDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_NetAssetsEquityAttributableToParent_965e2f69-7d0b-466f-943f-8815c251d733" xlink:href="bsprt-20250930.xsd#bsprt_NetAssetsEquityAttributableToParent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_ceb6a546-5205-4818-8af6-c46f912ce641" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Assets"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_bsprt_NetAssetsEquityAttributableToParent_965e2f69-7d0b-466f-943f-8815c251d733" xlink:to="loc_us-gaap_Assets_ceb6a546-5205-4818-8af6-c46f912ce641" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_d7f96c22-2af5-446c-b307-27d2e8b82090" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Liabilities"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_bsprt_NetAssetsEquityAttributableToParent_965e2f69-7d0b-466f-943f-8815c251d733" xlink:to="loc_us-gaap_Liabilities_d7f96c22-2af5-446c-b307-27d2e8b82090" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://bsprealtytrust.com/role/LeasesLeaseDetails" xlink:type="simple" xlink:href="bsprt-20250930.xsd#LeasesLeaseDetails"/>
  <link:calculationLink xlink:role="http://bsprealtytrust.com/role/LeasesLeaseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseCost_5441dd29-325f-445f-a277-997a8d12614b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LeaseCost"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseCost_74a57dd5-7287-44db-9c2b-8106bbfd5eff" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseCost"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_5441dd29-325f-445f-a277-997a8d12614b" xlink:to="loc_us-gaap_OperatingLeaseCost_74a57dd5-7287-44db-9c2b-8106bbfd5eff" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableLeaseCost_266a03f0-2180-4302-bfed-615de1457728" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_VariableLeaseCost"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_5441dd29-325f-445f-a277-997a8d12614b" xlink:to="loc_us-gaap_VariableLeaseCost_266a03f0-2180-4302-bfed-615de1457728" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://bsprealtytrust.com/role/LeasesOperatingLeaseRightofUseAssetsDetails" xlink:type="simple" xlink:href="bsprt-20250930.xsd#LeasesOperatingLeaseRightofUseAssetsDetails"/>
  <link:calculationLink xlink:role="http://bsprealtytrust.com/role/LeasesOperatingLeaseRightofUseAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_5b31118f-914b-46f7-863f-5dd6005c503b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_a13ee3a3-b6cd-46a2-944d-d540fba070a2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_5b31118f-914b-46f7-863f-5dd6005c503b" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_a13ee3a3-b6cd-46a2-944d-d540fba070a2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_bc340f60-48f1-4fa8-8de3-f0493caebaaa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_5b31118f-914b-46f7-863f-5dd6005c503b" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_bc340f60-48f1-4fa8-8de3-f0493caebaaa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_afd1de80-d4f8-40a6-9b9f-f1858fa21556" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_5b31118f-914b-46f7-863f-5dd6005c503b" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_afd1de80-d4f8-40a6-9b9f-f1858fa21556" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_493cf84b-2a4a-4946-8c09-bf610d96df5f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_5b31118f-914b-46f7-863f-5dd6005c503b" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_493cf84b-2a4a-4946-8c09-bf610d96df5f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_d02335b0-ce78-443b-8b80-19643e2e866d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_5b31118f-914b-46f7-863f-5dd6005c503b" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_d02335b0-ce78-443b-8b80-19643e2e866d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour_9ff46e27-707d-4352-8fc3-e9a20738c574" xlink:href="bsprt-20250930.xsd#bsprt_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_5b31118f-914b-46f7-863f-5dd6005c503b" xlink:to="loc_bsprt_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour_9ff46e27-707d-4352-8fc3-e9a20738c574" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://bsprealtytrust.com/role/LeasesOperatingLeaseRightofUseAssetsDetails_1" xlink:type="simple" xlink:href="bsprt-20250930.xsd#LeasesOperatingLeaseRightofUseAssetsDetails_1"/>
  <link:calculationLink xlink:role="http://bsprealtytrust.com/role/LeasesOperatingLeaseRightofUseAssetsDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_3116fecc-145a-40ee-b07d-951f1728e7f8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_828774ef-a50d-4fb8-aaf6-8adb5ed600b1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.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_3116fecc-145a-40ee-b07d-951f1728e7f8" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_828774ef-a50d-4fb8-aaf6-8adb5ed600b1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability_4c97b6ee-16da-4e06-8e8a-998ff32c7a71" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.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_3116fecc-145a-40ee-b07d-951f1728e7f8" xlink:to="loc_us-gaap_OperatingLeaseLiability_4c97b6ee-16da-4e06-8e8a-998ff32c7a71" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://bsprealtytrust.com/role/LeasesScheduleofFutureMinimumPaymentstobeReceivedDetails" xlink:type="simple" xlink:href="bsprt-20250930.xsd#LeasesScheduleofFutureMinimumPaymentstobeReceivedDetails"/>
  <link:calculationLink xlink:role="http://bsprealtytrust.com/role/LeasesScheduleofFutureMinimumPaymentstobeReceivedDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceived_64804674-79bc-473a-86c6-54bec98e00fc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceived"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedTwoYears_e416b842-1824-4c67-bce3-4a97dbad7032" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceivedTwoYears"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceived_64804674-79bc-473a-86c6-54bec98e00fc" xlink:to="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedTwoYears_e416b842-1824-4c67-bce3-4a97dbad7032" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedFourYears_31853c90-ea58-44b5-84e1-1d4a74175c17" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceivedFourYears"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceived_64804674-79bc-473a-86c6-54bec98e00fc" xlink:to="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedFourYears_31853c90-ea58-44b5-84e1-1d4a74175c17" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedThreeYears_436a8f42-c742-4cf2-bf94-7230d0d6806a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceivedThreeYears"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceived_64804674-79bc-473a-86c6-54bec98e00fc" xlink:to="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedThreeYears_436a8f42-c742-4cf2-bf94-7230d0d6806a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_LessorOperatingLeasePaymentToBeReceivedAfterYearFour_7372b442-ea3a-43aa-af77-ebb07ef8fa90" xlink:href="bsprt-20250930.xsd#bsprt_LessorOperatingLeasePaymentToBeReceivedAfterYearFour"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceived_64804674-79bc-473a-86c6-54bec98e00fc" xlink:to="loc_bsprt_LessorOperatingLeasePaymentToBeReceivedAfterYearFour_7372b442-ea3a-43aa-af77-ebb07ef8fa90" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths_0d30e986-f03c-4b29-b791-9b5377b62f96" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceived_64804674-79bc-473a-86c6-54bec98e00fc" xlink:to="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths_0d30e986-f03c-4b29-b791-9b5377b62f96" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear_06842278-df08-46a4-8647-969b5eb46bc3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceived_64804674-79bc-473a-86c6-54bec98e00fc" xlink:to="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear_06842278-df08-46a4-8647-969b5eb46bc3" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://bsprealtytrust.com/role/GoodwillOtherIntangibleAssetsScheduleofIntangibleAssetsandGoodwillDetails" xlink:type="simple" xlink:href="bsprt-20250930.xsd#GoodwillOtherIntangibleAssetsScheduleofIntangibleAssetsandGoodwillDetails"/>
  <link:calculationLink xlink:role="http://bsprealtytrust.com/role/GoodwillOtherIntangibleAssetsScheduleofIntangibleAssetsandGoodwillDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_1b746ea4-ffe4-4b2e-a38d-6b3fad92ce03" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_a4b99c17-098b-4457-b315-60747bf079bd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IntangibleAssetsGrossExcludingGoodwill"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_1b746ea4-ffe4-4b2e-a38d-6b3fad92ce03" xlink:to="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_a4b99c17-098b-4457-b315-60747bf079bd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_05b006cc-e21f-4fa2-9717-84d0d6c5c1db" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_1b746ea4-ffe4-4b2e-a38d-6b3fad92ce03" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_05b006cc-e21f-4fa2-9717-84d0d6c5c1db" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_8cf1168b-073e-448e-b317-e88f9cbc1e35" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_b1f20750-7469-4dea-804c-c123d48a0f60" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_8cf1168b-073e-448e-b317-e88f9cbc1e35" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_b1f20750-7469-4dea-804c-c123d48a0f60" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_e530f6be-706f-4a30-a732-fb67b98c294c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_8cf1168b-073e-448e-b317-e88f9cbc1e35" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_e530f6be-706f-4a30-a732-fb67b98c294c" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://bsprealtytrust.com/role/EarningsPerShareDetails" xlink:type="simple" xlink:href="bsprt-20250930.xsd#EarningsPerShareDetails"/>
  <link:calculationLink xlink:role="http://bsprealtytrust.com/role/EarningsPerShareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_NetIncomeLossAvailableToCommonStockholdersBasicIncludingUndistributedEarningsLossAllocatedToParticipatingSecurities_aa2e8662-7b7a-4752-957a-0897dbe10874" xlink:href="bsprt-20250930.xsd#bsprt_NetIncomeLossAvailableToCommonStockholdersBasicIncludingUndistributedEarningsLossAllocatedToParticipatingSecurities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockDividendsAndOtherAdjustments_2687cfd3-c7ab-4fa2-9294-fa7aa3ee4483" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockDividendsAndOtherAdjustments"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_bsprt_NetIncomeLossAvailableToCommonStockholdersBasicIncludingUndistributedEarningsLossAllocatedToParticipatingSecurities_aa2e8662-7b7a-4752-957a-0897dbe10874" xlink:to="loc_us-gaap_PreferredStockDividendsAndOtherAdjustments_2687cfd3-c7ab-4fa2-9294-fa7aa3ee4483" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_6f302c6b-2164-428a-8811-e39628c79934" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_bsprt_NetIncomeLossAvailableToCommonStockholdersBasicIncludingUndistributedEarningsLossAllocatedToParticipatingSecurities_aa2e8662-7b7a-4752-957a-0897dbe10874" xlink:to="loc_us-gaap_ProfitLoss_6f302c6b-2164-428a-8811-e39628c79934" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_9c7ac485-48ea-4dfe-b259-5931f3a799bc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_bsprt_NetIncomeLossAvailableToCommonStockholdersBasicIncludingUndistributedEarningsLossAllocatedToParticipatingSecurities_aa2e8662-7b7a-4752-957a-0897dbe10874" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_9c7ac485-48ea-4dfe-b259-5931f3a799bc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_NetIncomeLossAvailableToCommonStockholdersDilutedIncludingUndistributedEarningsLossAllocatedToParticipatingSecurities_6bca5037-f6ba-4752-bffe-9fd716e73667" xlink:href="bsprt-20250930.xsd#bsprt_NetIncomeLossAvailableToCommonStockholdersDilutedIncludingUndistributedEarningsLossAllocatedToParticipatingSecurities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockDividendsAndOtherAdjustments_fcde93fc-c7ef-4be6-a36c-d2d6ffa14faa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockDividendsAndOtherAdjustments"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_bsprt_NetIncomeLossAvailableToCommonStockholdersDilutedIncludingUndistributedEarningsLossAllocatedToParticipatingSecurities_6bca5037-f6ba-4752-bffe-9fd716e73667" xlink:to="loc_us-gaap_PreferredStockDividendsAndOtherAdjustments_fcde93fc-c7ef-4be6-a36c-d2d6ffa14faa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_a2decdc0-b7ec-4815-b722-a8d38eeee888" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_bsprt_NetIncomeLossAvailableToCommonStockholdersDilutedIncludingUndistributedEarningsLossAllocatedToParticipatingSecurities_6bca5037-f6ba-4752-bffe-9fd716e73667" xlink:to="loc_us-gaap_ProfitLoss_a2decdc0-b7ec-4815-b722-a8d38eeee888" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_e59baff1-c967-4d23-86fd-42a3c7330579" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_bsprt_NetIncomeLossAvailableToCommonStockholdersDilutedIncludingUndistributedEarningsLossAllocatedToParticipatingSecurities_6bca5037-f6ba-4752-bffe-9fd716e73667" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_e59baff1-c967-4d23-86fd-42a3c7330579" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_501690cf-a285-43e2-b0c1-b47052b3763e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_NetIncomeLossAvailableToCommonStockholdersBasicIncludingUndistributedEarningsLossAllocatedToParticipatingSecurities_b844620e-f54b-4a81-aed0-9ead2127b0af" xlink:href="bsprt-20250930.xsd#bsprt_NetIncomeLossAvailableToCommonStockholdersBasicIncludingUndistributedEarningsLossAllocatedToParticipatingSecurities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_501690cf-a285-43e2-b0c1-b47052b3763e" xlink:to="loc_bsprt_NetIncomeLossAvailableToCommonStockholdersBasicIncludingUndistributedEarningsLossAllocatedToParticipatingSecurities_b844620e-f54b-4a81-aed0-9ead2127b0af" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic_dab581ad-fc12-44e8-9d87-037370688f30" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_501690cf-a285-43e2-b0c1-b47052b3763e" xlink:to="loc_us-gaap_UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic_dab581ad-fc12-44e8-9d87-037370688f30" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_6bc7cf3e-cbf9-422a-af62-2c2498c55f83" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_efc4d3fb-448d-4f6a-b3b2-6e0ee207775b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_6bc7cf3e-cbf9-422a-af62-2c2498c55f83" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_efc4d3fb-448d-4f6a-b3b2-6e0ee207775b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_NetIncomeLossFromNonControllingInterestOPUnits_d4d70fa0-cdcc-4215-b292-c75b7a21a6a7" xlink:href="bsprt-20250930.xsd#bsprt_NetIncomeLossFromNonControllingInterestOPUnits"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_6bc7cf3e-cbf9-422a-af62-2c2498c55f83" xlink:to="loc_bsprt_NetIncomeLossFromNonControllingInterestOPUnits_d4d70fa0-cdcc-4215-b292-c75b7a21a6a7" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://bsprealtytrust.com/role/CommitmentsandContingenciesScheduleofUnfundedCommitmentsUnderCommercialMortgageLoansDetails" xlink:type="simple" xlink:href="bsprt-20250930.xsd#CommitmentsandContingenciesScheduleofUnfundedCommitmentsUnderCommercialMortgageLoansDetails"/>
  <link:calculationLink xlink:role="http://bsprealtytrust.com/role/CommitmentsandContingenciesScheduleofUnfundedCommitmentsUnderCommercialMortgageLoansDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount_cd659469-f242-497a-93d4-243ca00512c4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationDueInRemainderOfFiscalYear_8469ea64-16f4-4983-9ce6-c077fd7b9103" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationDueInRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount_cd659469-f242-497a-93d4-243ca00512c4" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationDueInRemainderOfFiscalYear_8469ea64-16f4-4983-9ce6-c077fd7b9103" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary_9ebcd261-75fc-4f19-a3ec-a1e9f65f7752" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount_cd659469-f242-497a-93d4-243ca00512c4" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary_9ebcd261-75fc-4f19-a3ec-a1e9f65f7752" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary_ed25f0e5-c15a-42d2-992b-4a9de92e5069" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount_cd659469-f242-497a-93d4-243ca00512c4" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary_ed25f0e5-c15a-42d2-992b-4a9de92e5069" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary_8fbd782f-29a2-40e6-ba51-afd449e4834e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount_cd659469-f242-497a-93d4-243ca00512c4" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary_8fbd782f-29a2-40e6-ba51-afd449e4834e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_UnrecordedUnconditionalPurchaseObligationToBePaidAfterYearFourAndAfterYearFour_30adc97b-0919-48f2-b45d-b9eb2799425f" xlink:href="bsprt-20250930.xsd#bsprt_UnrecordedUnconditionalPurchaseObligationToBePaidAfterYearFourAndAfterYearFour"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount_cd659469-f242-497a-93d4-243ca00512c4" xlink:to="loc_bsprt_UnrecordedUnconditionalPurchaseObligationToBePaidAfterYearFourAndAfterYearFour_30adc97b-0919-48f2-b45d-b9eb2799425f" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://bsprealtytrust.com/role/ServicingRevenueComponentsofServicingRevenueDetails" xlink:type="simple" xlink:href="bsprt-20250930.xsd#ServicingRevenueComponentsofServicingRevenueDetails"/>
  <link:calculationLink xlink:role="http://bsprealtytrust.com/role/ServicingRevenueComponentsofServicingRevenueDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets_2a92215e-2a35-48af-ab72-1032b4cd5f93" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AncillaryFeeIncomeGeneratedByServicingFinancialAssetsAmount_2afc42ea-141b-481e-898c-bb6e19adec8f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AncillaryFeeIncomeGeneratedByServicingFinancialAssetsAmount"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets_2a92215e-2a35-48af-ab72-1032b4cd5f93" xlink:to="loc_us-gaap_AncillaryFeeIncomeGeneratedByServicingFinancialAssetsAmount_2afc42ea-141b-481e-898c-bb6e19adec8f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_InterestEarnedOnEscrows_857723b1-2e27-44c7-96c9-1a4a8d477c9b" xlink:href="bsprt-20250930.xsd#bsprt_InterestEarnedOnEscrows"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets_2a92215e-2a35-48af-ab72-1032b4cd5f93" xlink:to="loc_bsprt_InterestEarnedOnEscrows_857723b1-2e27-44c7-96c9-1a4a8d477c9b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsprt_PayOffsMortgageServicingRightsMSRs_6742669b-e438-4d99-8bd3-59a739d8daf4" xlink:href="bsprt-20250930.xsd#bsprt_PayOffsMortgageServicingRightsMSRs"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets_2a92215e-2a35-48af-ab72-1032b4cd5f93" xlink:to="loc_bsprt_PayOffsMortgageServicingRightsMSRs_6742669b-e438-4d99-8bd3-59a739d8daf4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfMortgageServicingRightsMSRs_29d3f42e-7b6f-4713-8bfb-7cec5010ace3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AmortizationOfMortgageServicingRightsMSRs"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets_2a92215e-2a35-48af-ab72-1032b4cd5f93" xlink:to="loc_us-gaap_AmortizationOfMortgageServicingRightsMSRs_29d3f42e-7b6f-4713-8bfb-7cec5010ace3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MortgageServicingRightsMSRImpairmentRecovery_fabbe694-5061-4b3d-98a3-065825a1314e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MortgageServicingRightsMSRImpairmentRecovery"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets_2a92215e-2a35-48af-ab72-1032b4cd5f93" xlink:to="loc_us-gaap_MortgageServicingRightsMSRImpairmentRecovery_fabbe694-5061-4b3d-98a3-065825a1314e" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://bsprealtytrust.com/role/FairValueofFinancialInstrumentsScheduleofFinancialInstrumentsCarriedatFairValueonaRecurringBasisDetails" xlink:type="simple" xlink:href="bsprt-20250930.xsd#FairValueofFinancialInstrumentsScheduleofFinancialInstrumentsCarriedatFairValueonaRecurringBasisDetails"/>
  <link:calculationLink xlink:role="http://bsprealtytrust.com/role/FairValueofFinancialInstrumentsScheduleofFinancialInstrumentsCarriedatFairValueonaRecurringBasisDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialLiabilitiesFairValueDisclosure_8c931077-e553-421e-a11b-6cd8f5bba370" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancialLiabilitiesFairValueDisclosure"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilities_1395416d-b328-4e9c-bfe5-eb695b1dfb33" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeLiabilities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinancialLiabilitiesFairValueDisclosure_8c931077-e553-421e-a11b-6cd8f5bba370" xlink:to="loc_us-gaap_DerivativeLiabilities_1395416d-b328-4e9c-bfe5-eb695b1dfb33" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_e817f16a-5e38-4546-a862-69a1d916c1eb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsFairValueDisclosure"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_a244664b-225c-4b12-83f8-cc83678fbf3a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_e817f16a-5e38-4546-a862-69a1d916c1eb" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_a244664b-225c-4b12-83f8-cc83678fbf3a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MortgagesHeldForSaleFairValueDisclosure_78c568fc-0c2e-4254-921b-3140f787308c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MortgagesHeldForSaleFairValueDisclosure"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_e817f16a-5e38-4546-a862-69a1d916c1eb" xlink:to="loc_us-gaap_MortgagesHeldForSaleFairValueDisclosure_78c568fc-0c2e-4254-921b-3140f787308c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssets_54991bee-bec3-471d-8927-c31a33af6b4d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeAssets"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_e817f16a-5e38-4546-a862-69a1d916c1eb" xlink:to="loc_us-gaap_DerivativeAssets_54991bee-bec3-471d-8927-c31a33af6b4d" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://bsprealtytrust.com/role/OffsettingAssetsandLiabilitiesDetails" xlink:type="simple" xlink:href="bsprt-20250930.xsd#OffsettingAssetsandLiabilitiesDetails"/>
  <link:calculationLink xlink:role="http://bsprealtytrust.com/role/OffsettingAssetsandLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseAmountOffsetAgainstCollateral_b7efc2b7-e175-47a5-9e9f-71509ec24702" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseAmountOffsetAgainstCollateral"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseCollateralRightToReclaimCash_465dd30a-35c5-4561-ba9e-3ea136ce5224" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseCollateralRightToReclaimCash"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseAmountOffsetAgainstCollateral_b7efc2b7-e175-47a5-9e9f-71509ec24702" xlink:to="loc_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseCollateralRightToReclaimCash_465dd30a-35c5-4561-ba9e-3ea136ce5224" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesSoldUnderAgreementsToRepurchase_7394cd46-17a7-4c5b-a1bb-6499648297e5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SecuritiesSoldUnderAgreementsToRepurchase"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseAmountOffsetAgainstCollateral_b7efc2b7-e175-47a5-9e9f-71509ec24702" xlink:to="loc_us-gaap_SecuritiesSoldUnderAgreementsToRepurchase_7394cd46-17a7-4c5b-a1bb-6499648297e5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseCollateralRightToReclaimSecurities_f35a9ec0-b6a6-4906-a557-78c5752232ca" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseCollateralRightToReclaimSecurities"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseAmountOffsetAgainstCollateral_b7efc2b7-e175-47a5-9e9f-71509ec24702" xlink:to="loc_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseCollateralRightToReclaimSecurities_f35a9ec0-b6a6-4906-a557-78c5752232ca" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssets_084c3a16-a884-4d0a-9960-00ed55220778" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeAssets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_91765547-7514-4ac5-8441-f901e5c85a28" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeFairValueOfDerivativeAsset"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeAssets_084c3a16-a884-4d0a-9960-00ed55220778" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_91765547-7514-4ac5-8441-f901e5c85a28" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssetFairValueGrossLiability_0496ddaf-56fa-42fc-a471-2b6e643f2982" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeAssetFairValueGrossLiability"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeAssets_084c3a16-a884-4d0a-9960-00ed55220778" xlink:to="loc_us-gaap_DerivativeAssetFairValueGrossLiability_0496ddaf-56fa-42fc-a471-2b6e643f2982" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral_2c2ee3dc-a53b-4dba-8285-7889017bfcdd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeCollateralObligationToReturnCash_b79cb7ba-cb00-45f5-9400-a0f570ab27c3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeCollateralObligationToReturnCash"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral_2c2ee3dc-a53b-4dba-8285-7889017bfcdd" xlink:to="loc_us-gaap_DerivativeCollateralObligationToReturnCash_b79cb7ba-cb00-45f5-9400-a0f570ab27c3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssets_4f1819b9-1fdd-46b6-b4d2-852874716126" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeAssets"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral_2c2ee3dc-a53b-4dba-8285-7889017bfcdd" xlink:to="loc_us-gaap_DerivativeAssets_4f1819b9-1fdd-46b6-b4d2-852874716126" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeCollateralObligationToReturnSecurities_6755a73e-97ad-4b86-902f-fccc17e36b3f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeCollateralObligationToReturnSecurities"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral_2c2ee3dc-a53b-4dba-8285-7889017bfcdd" xlink:to="loc_us-gaap_DerivativeCollateralObligationToReturnSecurities_6755a73e-97ad-4b86-902f-fccc17e36b3f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilities_b53625a5-438c-4b30-937f-b3f57219b48c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeLiabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilityFairValueGrossAsset_e35e4f1c-b55c-4a43-aeeb-c4b9eff14b7e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeLiabilityFairValueGrossAsset"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeLiabilities_b53625a5-438c-4b30-937f-b3f57219b48c" xlink:to="loc_us-gaap_DerivativeLiabilityFairValueGrossAsset_e35e4f1c-b55c-4a43-aeeb-c4b9eff14b7e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeLiability_7607f542-96d2-4371-8116-83130be584cc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeFairValueOfDerivativeLiability"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeLiabilities_b53625a5-438c-4b30-937f-b3f57219b48c" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeLiability_7607f542-96d2-4371-8116-83130be584cc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesSoldUnderAgreementsToRepurchase_fc981687-ac3a-4187-90da-48f0a67bb577" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SecuritiesSoldUnderAgreementsToRepurchase"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseGross_8b98fa03-6fcc-4388-ae57-af87d5c0e774" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_SecuritiesSoldUnderAgreementsToRepurchase_fc981687-ac3a-4187-90da-48f0a67bb577" xlink:to="loc_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseGross_8b98fa03-6fcc-4388-ae57-af87d5c0e774" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseAsset_2325d1dd-01ff-430a-aa83-91756510de37" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseAsset"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_SecuritiesSoldUnderAgreementsToRepurchase_fc981687-ac3a-4187-90da-48f0a67bb577" xlink:to="loc_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseAsset_2325d1dd-01ff-430a-aa83-91756510de37" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
