Fannie Mae Mortgage Calculator vs TransUnion Mortgage Calculator

• Fannie Mae Mortgage Calculator fits best

  Integrated payment, affordability and refinance analysis

• TransUnion Mortgage Calculator fits best

  Amortization and scenario comparisons

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Side by side

Strengths and trade-offs

• Fannie Mae Mortgage Calculator — where it wins

  • Breaks payments into principal, interest, taxes, insurance and HOA fees
  • Advanced View lets users adjust taxes, homeowners insurance and HOA fees
  • Separate calculators estimate affordability and potential refinance savings

  Where it doesn't

  • Affordability and refinance are separate tools, not calculator modes
  • Estimates do not indicate mortgage approval or financing
  • Amortization schedules and adjustable-rate mortgage modeling are not documented

• TransUnion Mortgage Calculator — where it wins

  • Shows monthly and yearly amortization with balances over time
  • Includes tax, insurance, HOA, and mortgage insurance inputs
  • Compares scenarios by changing loan amount, rate, or term

  Where it doesn't

  • Does not calculate affordability from income and debts
  • Does not model adjustable-rate mortgages
  • Available on the web only

• FMFannie Mae Mortgage Calculator9.2/10 · Free plan

  A free web calculator with payment breakdowns plus separate affordability and refinance tools.

  Visit Fannie MaeFull verdict →
• TMTransUnion Mortgage Calculator9.0/10 · Free plan

  A free web calculator for comparing mortgage payments, costs, and amortization scenarios.

  Visit TransUnionFull verdict →