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Amortization Calculator

See a year-by-year amortization schedule for a loan — how much of each year\u2019s payments goes to interest versus reducing your balance.

Your numbers

$
%
yrs
Monthly payment
$0
Principal & interest per month
Total interest$0
Total paid$0
YearPrincipalInterestBalance

How the amortization calculator works

An amortization schedule shows how a fixed loan payment is split over time. Early on, most of each payment is interest; as the balance falls, more goes to principal, until the loan is fully paid off.

Each month: interest = balance × r, principal = payment − interest

Frequently asked questions

Why is early interest so high?+
Interest is charged on the outstanding balance, which is largest at the start. As you pay down principal, the interest portion of each payment shrinks.
Can I see it month by month?+
This view summarizes by year to stay readable. The totals match a full monthly schedule to the cent.

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