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Loan Calculator

Calculate monthly payments, total interest, and full amortization schedule.

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Amortization Schedule
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How to calculate a loan payment

Monthly payment = P × [r(1+r)^n] ÷ [(1+r)^n − 1], where P is the principal, r is the monthly interest rate (annual rate ÷ 12), and n is the number of payments.

What is an amortization schedule?

An amortization schedule shows every payment broken into principal and interest. Early payments are mostly interest; later payments are mostly principal. This is why paying extra early saves significantly on interest.

How to reduce loan interest

Make extra payments toward principal, refinance to a lower rate, choose a shorter term, or make biweekly instead of monthly payments. Even small extra payments significantly reduce total interest over time.