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Mortgage Calculator

Calculate monthly mortgage payments and total cost

About Mortgage Calculator

Calculate monthly mortgage payments, total interest, and preview your amortization schedule — all in your browser.

How to use Mortgage Calculator

  1. 1Enter the mortgage loan amount.
  2. 2Set the annual interest rate.
  3. 3Choose the mortgage duration in years.
  4. 4View your monthly payment, total interest, and total cost of the loan.
  5. 5Review the first 12 months of the amortization schedule with principal and interest breakdown.
  6. 6Use the overpayment simulation to see how extra payments reduce your total cost.

Tips

  • Even small monthly overpayments can save years and thousands in interest on a 20-30 year mortgage.
  • Compare 15-year vs. 30-year terms: shorter terms have higher payments but dramatically less total interest.
  • Use this alongside the full Amortization Table tool for a complete schedule with export options.

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OneKitTools TeamUpdated 2.21.4