Interest Rate Calculator
Work out the interest rate on a loan from its payment and term.
Result
Results are estimates for general information only and are not professional advice.
Finding the interest rate
If you know a loan's amount, monthly payment and term, this calculator solves for the annual interest rate (APR) behind it. This is useful for checking a quoted rate or comparing financing offers.
Frequently Asked Questions
What is the Interest Rate Calculator?
Work out the interest rate on a loan from its payment and term. It runs instantly in your browser and is completely free to use.
What do I need to enter to use the Interest Rate Calculator?
The Interest Rate Calculator asks for the following values (3): Loan amount, Monthly payment, Term (years). Fill them in and the result appears immediately — the calculation runs on your own device, so nothing you type is sent to a server.
How accurate is the Interest Rate Calculator?
The Interest Rate Calculator uses standard, widely-accepted formulas, so its figures are reliable estimates for everyday planning. They are not a substitute for advice from a qualified professional.
Is the Interest Rate Calculator free, and do I need an account?
Yes. The Interest Rate Calculator — and every other calculator on Calculatis — is completely free, with no registration, no download and no limit on how often you use it.