Amortization Calculator

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See how each loan payment splits between interest and principal, and how extra payments shorten the loan.

How the calculation works

The calculator finds your regular payment, then builds a schedule showing the interest, principal and remaining balance after every payment. Enter an extra monthly payment to see how much time and interest you could save.

Formula used

Interest = Balance × monthly rate; Principal = Payment − Interest; New balance = Balance − Principal

Example

A $200,000 loan at 6% for 30 years has a $1,199.10 payment and $231,676 of total interest.

Frequently asked questions

What does amortization mean?

Paying off a loan gradually with regular payments that cover interest and principal.

Do extra payments help?

Yes. Extra payments go to principal, so you owe less interest and finish sooner.

Results are estimates for general information only and are not professional financial, medical or legal advice.