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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019affda-2955-777e-bed2-20b20924e379,g:6f5ac3d0-7ee2-4977-97d1-4b783560e70a-->
<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:arcroleRef arcroleURI="https://xbrl.org/2023/arcrole/summation-item" xlink:type="simple" xlink:href="https://www.xbrl.org/2023/calculation-1.1.xsd#summation-item"/>
  <link:roleRef roleURI="http://www.fermiamerica.com/role/ConsolidatedBalanceSheet" xlink:type="simple" xlink:href="frmi-20251231.xsd#ConsolidatedBalanceSheet"/>
  <link:calculationLink xlink:role="http://www.fermiamerica.com/role/ConsolidatedBalanceSheet" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019affda-29f7-7a99-8620-d7af35abd21b" 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_CommonStockValue_019affda-29f7-7ccc-be10-d1a0e6236cd3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019affda-29f7-7a99-8620-d7af35abd21b" xlink:to="loc_us-gaap_CommonStockValue_019affda-29f7-7ccc-be10-d1a0e6236cd3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue_019affda-29f7-7d4e-8922-475a8a53747d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockValue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019affda-29f7-7a99-8620-d7af35abd21b" xlink:to="loc_us-gaap_PreferredStockValue_019affda-29f7-7d4e-8922-475a8a53747d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapital_019affda-29f7-7982-b94a-dbe8e8b8a35f" 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="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019affda-29f7-7a99-8620-d7af35abd21b" xlink:to="loc_us-gaap_AdditionalPaidInCapital_019affda-29f7-7982-b94a-dbe8e8b8a35f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019affda-29f7-7ead-b279-b198191aeba1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019affda-29f7-7a99-8620-d7af35abd21b" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019affda-29f7-7ead-b279-b198191aeba1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_019affda-29f7-7cac-b7cc-3712ccedac0e" 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_019affda-29f7-7051-b02c-429f40f139b8" 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="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019affda-29f7-7cac-b7cc-3712ccedac0e" xlink:to="loc_us-gaap_Liabilities_019affda-29f7-7051-b02c-429f40f139b8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_019affda-29f7-7872-b26c-4e2c47443eba" 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="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019affda-29f7-7cac-b7cc-3712ccedac0e" xlink:to="loc_us-gaap_CommitmentsAndContingencies_019affda-29f7-7872-b26c-4e2c47443eba" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019affda-29f7-7bca-999a-875f544b4ac8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquity"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019affda-29f7-7cac-b7cc-3712ccedac0e" xlink:to="loc_us-gaap_StockholdersEquity_019affda-29f7-7bca-999a-875f544b4ac8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_019affda-29f7-7662-ba21-03b4d69a7177" 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_PropertyPlantAndEquipmentNet_019affda-29f7-7ba8-8bf7-53821e9a2d9e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019affda-29f7-7662-ba21-03b4d69a7177" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_019affda-29f7-7ba8-8bf7-53821e9a2d9e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019affda-29f7-7596-9386-299008b30483" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019affda-29f7-7662-ba21-03b4d69a7177" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019affda-29f7-7596-9386-299008b30483" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssets_019affda-29f7-7455-9b87-7bcde784c40d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PrepaidExpenseAndOtherAssets"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019affda-29f7-7662-ba21-03b4d69a7177" xlink:to="loc_us-gaap_PrepaidExpenseAndOtherAssets_019affda-29f7-7455-9b87-7bcde784c40d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_019affda-29f7-7a5a-91ba-92a5bcc97cce" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019affda-29f7-7662-ba21-03b4d69a7177" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_019affda-29f7-7a5a-91ba-92a5bcc97cce" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019affda-29f7-7630-94fe-9135c9e5e502" 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_DebtCurrent_019affda-29f7-70b8-b326-883ef81bc49a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019affda-29f7-7630-94fe-9135c9e5e502" xlink:to="loc_us-gaap_DebtCurrent_019affda-29f7-70b8-b326-883ef81bc49a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent_019affda-29f7-7b67-b913-1ba772afc626" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019affda-29f7-7630-94fe-9135c9e5e502" xlink:to="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent_019affda-29f7-7b67-b913-1ba772afc626" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability_019affda-29f7-778e-9282-c0272fc3265b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiability"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019affda-29f7-7630-94fe-9135c9e5e502" xlink:to="loc_us-gaap_OperatingLeaseLiability_019affda-29f7-778e-9282-c0272fc3265b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilities_019affda-29f7-776b-a6dd-c19d8e79294b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherLiabilities"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019affda-29f7-7630-94fe-9135c9e5e502" xlink:to="loc_us-gaap_OtherLiabilities_019affda-29f7-776b-a6dd-c19d8e79294b" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fermiamerica.com/role/ConsolidatedStatementsofOperations" xlink:type="simple" xlink:href="frmi-20251231.xsd#ConsolidatedStatementsofOperations"/>
  <link:calculationLink xlink:role="http://www.fermiamerica.com/role/ConsolidatedStatementsofOperations" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_019affda-29f7-7702-bc6e-563edca5c4bb" 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_OtherNonoperatingIncomeExpense_019affda-29f7-71ed-99da-629d102c9b3b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_019affda-29f7-7702-bc6e-563edca5c4bb" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_019affda-29f7-71ed-99da-629d102c9b3b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseNonoperating_019affda-29f7-76f7-a1ae-ba854af15302" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestExpenseNonoperating"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_019affda-29f7-7702-bc6e-563edca5c4bb" xlink:to="loc_us-gaap_InterestExpenseNonoperating_019affda-29f7-76f7-a1ae-ba854af15302" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_019affda-29f7-7a2c-96fa-0cbed7da6c9f" 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_us-gaap_GeneralAndAdministrativeExpense_019affda-29f7-79d4-b46e-88fdf220dafa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_019affda-29f7-7a2c-96fa-0cbed7da6c9f" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_019affda-29f7-79d4-b46e-88fdf220dafa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019affda-29f7-7b2f-b4ba-c1cfc93104c8" 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_OperatingIncomeLoss_019affda-29f7-7e7e-a8e2-3e71d68b47e1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019affda-29f7-7b2f-b4ba-c1cfc93104c8" xlink:to="loc_us-gaap_OperatingIncomeLoss_019affda-29f7-7e7e-a8e2-3e71d68b47e1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_019affda-29f7-7eff-aeb0-dc0ef9265122" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019affda-29f7-7b2f-b4ba-c1cfc93104c8" xlink:to="loc_us-gaap_NonoperatingIncomeExpense_019affda-29f7-7eff-aeb0-dc0ef9265122" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_019affda-29f7-71e2-b0e6-5b589f407872" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_019affda-29f7-7c55-8c14-5912f30d88fd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingExpenses"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_019affda-29f7-71e2-b0e6-5b589f407872" xlink:to="loc_us-gaap_OperatingExpenses_019affda-29f7-7c55-8c14-5912f30d88fd" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fermiamerica.com/role/ConsolidatedStatementofCashFlows" xlink:type="simple" xlink:href="frmi-20251231.xsd#ConsolidatedStatementofCashFlows"/>
  <link:calculationLink xlink:role="http://www.fermiamerica.com/role/ConsolidatedStatementofCashFlows" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019affda-29f7-74f1-b12e-e3c5db38a69e" 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_PaymentsForProceedsFromOtherInvestingActivities_019c4635-dea4-7606-b710-0ff1f74fc9c2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019affda-29f7-74f1-b12e-e3c5db38a69e" xlink:to="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_019c4635-dea4-7606-b710-0ff1f74fc9c2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_019affda-29f7-7d12-8e39-34888c807e64" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019affda-29f7-74f1-b12e-e3c5db38a69e" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_019affda-29f7-7d12-8e39-34888c807e64" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019affda-29f7-7456-a05c-f502a160f971" 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_NetIncomeLoss_019affda-29f7-7380-8790-2d27323cf5f6" 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="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019affda-29f7-7456-a05c-f502a160f971" xlink:to="loc_us-gaap_NetIncomeLoss_019affda-29f7-7380-8790-2d27323cf5f6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_019affda-29f7-7c4a-b96e-fdba59cff447" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensation"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019affda-29f7-7456-a05c-f502a160f971" xlink:to="loc_us-gaap_ShareBasedCompensation_019affda-29f7-7c4a-b96e-fdba59cff447" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoncashContributionExpense_019affda-29f7-7a27-9aaf-242cbafcaa16" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NoncashContributionExpense"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019affda-29f7-7456-a05c-f502a160f971" xlink:to="loc_us-gaap_NoncashContributionExpense_019affda-29f7-7a27-9aaf-242cbafcaa16" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_frmi_ChangeInFairValueOfEmbeddedDerivative_019affda-29f7-706c-adb6-ce060fe19a4b" xlink:href="frmi-20251231.xsd#frmi_ChangeInFairValueOfEmbeddedDerivative"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019affda-29f7-7456-a05c-f502a160f971" xlink:to="loc_frmi_ChangeInFairValueOfEmbeddedDerivative_019affda-29f7-706c-adb6-ce060fe19a4b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_frmi_ConvertibleNotesInducementExpense_019affda-29f7-7770-8dab-a0b5d5de4d4b" xlink:href="frmi-20251231.xsd#frmi_ConvertibleNotesInducementExpense"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019affda-29f7-7456-a05c-f502a160f971" xlink:to="loc_frmi_ConvertibleNotesInducementExpense_019affda-29f7-7770-8dab-a0b5d5de4d4b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_019affda-29f7-7ff4-8e51-b0f5cf431de6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019affda-29f7-7456-a05c-f502a160f971" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_019affda-29f7-7ff4-8e51-b0f5cf431de6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_019affda-29f7-77c7-950a-3f405deb296b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019affda-29f7-7456-a05c-f502a160f971" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_019affda-29f7-77c7-950a-3f405deb296b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyTransactionGainLossUnrealizedAfterTax_019c26be-60c6-7910-b887-08ef2dc1b84f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForeignCurrencyTransactionGainLossUnrealizedAfterTax"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019affda-29f7-7456-a05c-f502a160f971" xlink:to="loc_us-gaap_ForeignCurrencyTransactionGainLossUnrealizedAfterTax_019c26be-60c6-7910-b887-08ef2dc1b84f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncashIncomeExpense_019c4636-892d-7618-b623-b8cad5c25ebb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherNoncashIncomeExpense"/>
    <link:calculationArc order="9" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019affda-29f7-7456-a05c-f502a160f971" xlink:to="loc_us-gaap_OtherNoncashIncomeExpense_019c4636-892d-7618-b623-b8cad5c25ebb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_019affda-29f7-73ed-b7be-489825b7e35a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019affda-29f7-78d4-923c-3964aece3001" 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="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_019affda-29f7-73ed-b7be-489825b7e35a" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019affda-29f7-78d4-923c-3964aece3001" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019affda-29f7-7842-b7a3-4a7f76deae64" 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="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_019affda-29f7-73ed-b7be-489825b7e35a" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019affda-29f7-7842-b7a3-4a7f76deae64" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019affda-29f7-704e-a644-b772e2a4ae19" 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="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_019affda-29f7-73ed-b7be-489825b7e35a" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019affda-29f7-704e-a644-b772e2a4ae19" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019affda-29f7-799b-88bb-9a7f385688b7" 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_ProceedsFromConvertibleDebt_019affda-29f7-741a-9e5a-f354cd6614e2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromConvertibleDebt"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019affda-29f7-799b-88bb-9a7f385688b7" xlink:to="loc_us-gaap_ProceedsFromConvertibleDebt_019affda-29f7-741a-9e5a-f354cd6614e2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromOtherDebt_019affda-29f7-70dd-a874-516e30558323" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromOtherDebt"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019affda-29f7-799b-88bb-9a7f385688b7" xlink:to="loc_us-gaap_ProceedsFromOtherDebt_019affda-29f7-70dd-a874-516e30558323" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock_019affda-29f7-706d-a386-a8a0ccd69677" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019affda-29f7-799b-88bb-9a7f385688b7" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock_019affda-29f7-706d-a386-a8a0ccd69677" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfDebt_019affda-29f7-7141-9e54-c9d3f9af6acf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromIssuanceOfDebt"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019affda-29f7-799b-88bb-9a7f385688b7" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfDebt_019affda-29f7-7141-9e54-c9d3f9af6acf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfNotesPayable_019affda-29f7-7897-be55-733d7707f26d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RepaymentsOfNotesPayable"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019affda-29f7-799b-88bb-9a7f385688b7" xlink:to="loc_us-gaap_RepaymentsOfNotesPayable_019affda-29f7-7897-be55-733d7707f26d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDebtIssuanceCosts_019affda-29f7-7243-9ddb-1f2fc3e6da87" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsOfDebtIssuanceCosts"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019affda-29f7-799b-88bb-9a7f385688b7" xlink:to="loc_us-gaap_PaymentsOfDebtIssuanceCosts_019affda-29f7-7243-9ddb-1f2fc3e6da87" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfStockIssuanceCosts_019affda-29f7-717f-8fc8-bd06c0cc8511" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsOfStockIssuanceCosts"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019affda-29f7-799b-88bb-9a7f385688b7" xlink:to="loc_us-gaap_PaymentsOfStockIssuanceCosts_019affda-29f7-717f-8fc8-bd06c0cc8511" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceInitialPublicOffering_019b55ed-6c39-7caf-982c-c46b6440e44c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromIssuanceInitialPublicOffering"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019affda-29f7-799b-88bb-9a7f385688b7" xlink:to="loc_us-gaap_ProceedsFromIssuanceInitialPublicOffering_019b55ed-6c39-7caf-982c-c46b6440e44c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_019c4635-70b5-7721-b33c-549429618ad2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019affda-29f7-799b-88bb-9a7f385688b7" xlink:to="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_019c4635-70b5-7721-b33c-549429618ad2" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fermiamerica.com/role/NetLossPerShareScheduleofNetLossPerShareDetails" xlink:type="simple" xlink:href="frmi-20251231.xsd#NetLossPerShareScheduleofNetLossPerShareDetails"/>
  <link:calculationLink xlink:role="http://www.fermiamerica.com/role/NetLossPerShareScheduleofNetLossPerShareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersDiluted_019c91f6-39c2-7e6b-ad7f-4fa8c99276bf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersDiluted"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019c91f6-39c2-73dd-a23c-991b8cf7e972" 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="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersDiluted_019c91f6-39c2-7e6b-ad7f-4fa8c99276bf" xlink:to="loc_us-gaap_NetIncomeLoss_019c91f6-39c2-73dd-a23c-991b8cf7e972" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockDividendsAndOtherAdjustments_019c91f6-39c2-7703-bcef-455a5df28613" 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="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersDiluted_019c91f6-39c2-7e6b-ad7f-4fa8c99276bf" xlink:to="loc_us-gaap_PreferredStockDividendsAndOtherAdjustments_019c91f6-39c2-7703-bcef-455a5df28613" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_019c91f6-5bd4-7b48-8af1-3f1e165c9892" 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_us-gaap_NetIncomeLoss_019c91f6-5bd4-7b83-b993-465ef1d6a752" 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="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_019c91f6-5bd4-7b48-8af1-3f1e165c9892" xlink:to="loc_us-gaap_NetIncomeLoss_019c91f6-5bd4-7b83-b993-465ef1d6a752" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockDividendsAndOtherAdjustments_019c91f6-5bd4-72db-a92d-2517c4ac0001" 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="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_019c91f6-5bd4-7b48-8af1-3f1e165c9892" xlink:to="loc_us-gaap_PreferredStockDividendsAndOtherAdjustments_019c91f6-5bd4-72db-a92d-2517c4ac0001" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fermiamerica.com/role/PropertyPlantandEquipmentScheduleofPropertyPlantandEquipmentDetails" xlink:type="simple" xlink:href="frmi-20251231.xsd#PropertyPlantandEquipmentScheduleofPropertyPlantandEquipmentDetails"/>
  <link:calculationLink xlink:role="http://www.fermiamerica.com/role/PropertyPlantandEquipmentScheduleofPropertyPlantandEquipmentDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_019bd504-988b-72eb-b255-6cc446969c82" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_019bd504-988b-7bd2-942f-9a0db80ad252" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_019bd504-988b-72eb-b255-6cc446969c82" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_019bd504-988b-7bd2-942f-9a0db80ad252" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_019bd504-988b-7a41-b495-e6213d7a1a17" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_019bd504-988b-72eb-b255-6cc446969c82" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_019bd504-988b-7a41-b495-e6213d7a1a17" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fermiamerica.com/role/DebtnetScheduleofDebtDetails" xlink:type="simple" xlink:href="frmi-20251231.xsd#DebtnetScheduleofDebtDetails"/>
  <link:calculationLink xlink:role="http://www.fermiamerica.com/role/DebtnetScheduleofDebtDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtCurrent_019affda-29f7-7b84-9fad-b12835b0eee5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermBorrowings_019affda-29f7-745d-8510-96a2a0735091" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShortTermBorrowings"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DebtCurrent_019affda-29f7-7b84-9fad-b12835b0eee5" xlink:to="loc_us-gaap_ShortTermBorrowings_019affda-29f7-745d-8510-96a2a0735091" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_019affda-29f7-7716-a102-f6a96faf6061" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DebtCurrent_019affda-29f7-7b84-9fad-b12835b0eee5" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_019affda-29f7-7716-a102-f6a96faf6061" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fermiamerica.com/role/DebtnetScheduleofAnnualPrincipalMaturitiesofOutstandingDebtObligationsDetails" xlink:type="simple" xlink:href="frmi-20251231.xsd#DebtnetScheduleofAnnualPrincipalMaturitiesofOutstandingDebtObligationsDetails"/>
  <link:calculationLink xlink:role="http://www.fermiamerica.com/role/DebtnetScheduleofAnnualPrincipalMaturitiesofOutstandingDebtObligationsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_019affda-29f7-7e60-aa33-34afb538d303" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebt"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_019affda-29f7-7a05-8cf5-ea70885761e9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019affda-29f7-7e60-aa33-34afb538d303" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_019affda-29f7-7a05-8cf5-ea70885761e9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_019affda-29f7-76bb-bf86-fc97c5b5be9f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019affda-29f7-7e60-aa33-34afb538d303" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_019affda-29f7-76bb-bf86-fc97c5b5be9f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_019affda-29f7-73ea-b081-f501db0d9ab8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019affda-29f7-7e60-aa33-34afb538d303" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_019affda-29f7-73ea-b081-f501db0d9ab8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_019affda-29f7-7c09-b8fc-0db18d7455d9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019affda-29f7-7e60-aa33-34afb538d303" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_019affda-29f7-7c09-b8fc-0db18d7455d9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_019affda-29f7-740a-aee6-8e05c0fb5da6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019affda-29f7-7e60-aa33-34afb538d303" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_019affda-29f7-740a-aee6-8e05c0fb5da6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive_019affda-29f7-777b-8faf-c5fb847bed68" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019affda-29f7-7e60-aa33-34afb538d303" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive_019affda-29f7-777b-8faf-c5fb847bed68" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fermiamerica.com/role/LeasesScheduleofFutureMinimumLeasePaymentsDetails" xlink:type="simple" xlink:href="frmi-20251231.xsd#LeasesScheduleofFutureMinimumLeasePaymentsDetails"/>
  <link:calculationLink xlink:role="http://www.fermiamerica.com/role/LeasesScheduleofFutureMinimumLeasePaymentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019affda-29f8-754e-b6d0-fe3f645a2213" 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_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_019affda-29f8-7465-94c8-8b2d8bc7c12e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019affda-29f8-754e-b6d0-fe3f645a2213" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_019affda-29f8-7465-94c8-8b2d8bc7c12e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_019affda-29f8-7395-9d3b-2d55b791b589" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019affda-29f8-754e-b6d0-fe3f645a2213" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_019affda-29f8-7395-9d3b-2d55b791b589" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_019affda-29f8-7a63-86a8-e16658e57e3f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019affda-29f8-754e-b6d0-fe3f645a2213" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_019affda-29f8-7a63-86a8-e16658e57e3f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_019affda-29f8-7352-9cf9-ef9649ec8c95" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019affda-29f8-754e-b6d0-fe3f645a2213" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_019affda-29f8-7352-9cf9-ef9649ec8c95" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive_019affda-29f8-73c3-b788-06287e5fa25e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019affda-29f8-754e-b6d0-fe3f645a2213" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive_019affda-29f8-73c3-b788-06287e5fa25e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive_019affda-29f8-79f4-b74e-e3045aff6a7e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019affda-29f8-754e-b6d0-fe3f645a2213" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive_019affda-29f8-79f4-b74e-e3045aff6a7e" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fermiamerica.com/role/LeasesScheduleofFutureMinimumLeasePaymentsDetails_1" xlink:type="simple" xlink:href="frmi-20251231.xsd#LeasesScheduleofFutureMinimumLeasePaymentsDetails_1"/>
  <link:calculationLink xlink:role="http://www.fermiamerica.com/role/LeasesScheduleofFutureMinimumLeasePaymentsDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019b4a2a-2e30-7f65-996f-faa02dbcbb49" 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_019b4a2a-2e30-7b05-a2b8-50be994cfa02" 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="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019b4a2a-2e30-7f65-996f-faa02dbcbb49" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_019b4a2a-2e30-7b05-a2b8-50be994cfa02" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability_019b4a2a-2e30-7d04-9f66-c573d787769b" 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="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019b4a2a-2e30-7f65-996f-faa02dbcbb49" xlink:to="loc_us-gaap_OperatingLeaseLiability_019b4a2a-2e30-7d04-9f66-c573d787769b" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fermiamerica.com/role/CommitmentsandContingenciesUnconditionalPurchaseObligationsMaturityDetails" xlink:type="simple" xlink:href="frmi-20251231.xsd#CommitmentsandContingenciesUnconditionalPurchaseObligationsMaturityDetails"/>
  <link:calculationLink xlink:role="http://www.fermiamerica.com/role/CommitmentsandContingenciesUnconditionalPurchaseObligationsMaturityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount_019c9244-70a0-70cf-a90d-a6a93f0706ae" 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_UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary_019c9244-70a0-7b58-a13d-48c97771e78b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount_019c9244-70a0-70cf-a90d-a6a93f0706ae" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary_019c9244-70a0-7b58-a13d-48c97771e78b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary_019c9244-70a0-7df9-a705-50d0bd0cee4e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount_019c9244-70a0-70cf-a90d-a6a93f0706ae" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary_019c9244-70a0-7df9-a705-50d0bd0cee4e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary_019c9244-70a0-7f6f-a4bc-ecfb17ce41e2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount_019c9244-70a0-70cf-a90d-a6a93f0706ae" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary_019c9244-70a0-7f6f-a4bc-ecfb17ce41e2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversary_019c9244-70a0-71a7-916f-5e132a7fd911" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversary"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount_019c9244-70a0-70cf-a90d-a6a93f0706ae" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversary_019c9244-70a0-71a7-916f-5e132a7fd911" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFifthAnniversary_019c9244-70a0-73bb-9c1d-cf6c007fb9e8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFifthAnniversary"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount_019c9244-70a0-70cf-a90d-a6a93f0706ae" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFifthAnniversary_019c9244-70a0-73bb-9c1d-cf6c007fb9e8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationDueAfterFiveYears_019c9244-70a0-718d-985d-0acfe5bd951e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationDueAfterFiveYears"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount_019c9244-70a0-70cf-a90d-a6a93f0706ae" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationDueAfterFiveYears_019c9244-70a0-718d-985d-0acfe5bd951e" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
