Loan Calculator

Use this calculator for any fixed-rate US installment loan—an auto loan, a personal loan, a private student loan, or a business term loan. Enter your principal, annual interest rate, and term in years, and you will instantly see your monthly payment, total interest paid over the life of the loan, and the payoff date. Because most loans here do not carry property tax or PMI, those fields are hidden—keeping the form simple is the point.

Inputs

Loan principal ($)Interest rate (annual %)Loan term (years)Start dateExtra monthly payment ($)

Results

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Monthly P&I

$518.84

Monthly payment

$518.84

Total interest

$6,130.25

Payoff date

Aug 2031

Balance & interest over time

What kind of loans does this calculator work for?

Any loan that:

charges a fixed annual interest rate (APR),
repays in equal monthly payments (an amortizing loan), and
has a fixed term in years.

If you have a variable-rate loan or a payment that changes over time, results here will not match your statement—talk to your lender for the exact amortization.

See Personalized Rates