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Set the home purchase amount, the annual mortgage rate, and a term such as 15 or 30 years; the monthly payment plus what you pay overall and in total interest update live as you edit.

Mortgage Calculator Online


Estimate the monthly payment on a home loan from the amount you plan to borrow, the annual interest rate, and the term in years.

Enter those three numbers and the monthly payment, total paid over the life of the mortgage, and total interest all update as you type - there is no submit button.


Key features

  • Works out a loan or mortgage monthly payment from the principal, interest rate, and term.
  • Live totals: the monthly payment, total paid, and total interest all update as you type, with no submit button.
  • The math runs entirely in your browser using the standard amortization formula - no upload and no account.
  • An optional 12-month amortization table shows how each payment splits between principal and interest.

When to use it

Because the standard amortization formula is the same for any fixed-rate loan, use it to compare a 15-year against a 30-year term, or watch how a small rate change moves the payment, before you apply.

Because a mortgage front-loads interest, the amortization table is useful for seeing how little of each early payment goes toward principal at the start of the term.

What it does not cover

The math runs entirely in your browser - no upload and no account. The result is illustrative only and does not include property tax, insurance, or lender fees.

For a car, student, or personal loan, the loan calculator runs the same amortization math with generic labels.

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Frequently Asked Questions

What does Mortgage Calculator Online do?

Works out what a home loan costs each month, plus the total you repay and the total interest, from the amount borrowed, the annual rate, and the number of years.

When is the mortgage calculator most useful?

Use it while house-hunting to see how a 15 or 30-year term, or a small change in the interest rate, moves your monthly home-loan payment before you apply.

Does the payment include property tax and insurance?

No - it shows principal and interest only. Property tax, homeowners insurance, and lender fees are not included, so treat the figure as illustrative.