Loan Payment Calculator

Estimate the monthly payment on a loan.

Loan amount

Annual rate %

Term (years)

— Monthly payment

🔒 Everything runs in your browser. Nothing is uploaded.

Examples

{"principal":10000,"rate":6,"years":5} → 193.33 loan payment

Available operations: loan payment.

Everything runs locally with the same code that passes our automated correctness tests — no server, no upload.