Interest Rate Calculator

Calculate the interest rate on any loan from the payment amount. Reverse-engineer hidden rates.

Quick Answer

Know your payment but not the rate? This calculator reverse-engineers the interest rate from your loan terms. Useful for evaluating rent-to-own offers, financing deals, or comparing hidden rates.

Results update automatically as you type

Known Values

Loan Amount

Monthly Payment

Loan Term

Interest Rate

7.42%

Annual rate

Total Interest

$5,000

Total Paid

$30,000

60 payments

Pro Tips

•Run multiple scenarios with different values to understand your options
•Bookmark or share your results to reference later
•Check the FAQ section below for answers to common questions

Common Mistakes

•Not accounting for inflation over long time periods
•Forgetting to include all relevant fees and costs
•Using estimates when actual numbers are available

What's Next?

Loans Guide

Learn more about loans strategies

Related Calculators

Explore more tools for your financial planning

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Sources & Accuracy

Last updated: January 13, 2025

Reviewed by: CalcGrid Editorial Team

Data Sources:

Federal Reserve Interest Rate Data(2024)

Learn more about how we calculate and our editorial standards.

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