Mortgage Amortization Calculator

See the payment, total interest and a year-by-year balance schedule for a mortgage.

What this calculator does

Enter the loan, rate and term to get the monthly payment and an amortization schedule showing how the balance falls each year.

A worked example

Worked through, a loan amount of 200,000 produces a monthly payment of $1,199.1. Underneath, Total interest comes out at $231,676.38 and Total paid at $431,676.38. Change any field and every figure updates as you type.

How to fill it in

  1. Enter your figures in the fields provided.
  2. The result updates as you type.
  3. Review the breakdown below the main number.

How the number is calculated

payment = P × r ÷ (1 − (1+r)⁻ⁿ)

Questions people ask about this

What is amortization?
Paying a loan with equal payments where the interest/principal split shifts over time.
Why is early interest high?
Interest is charged on the balance, which is largest at the start.