Loan & Mortgage Calculator
Plug in the principal, annual interest rate and term — get the monthly payment, total cost over the life of the loan, total interest paid, and a per-month amortization schedule showing how each payment is split between principal and interest. Add an optional extra monthly principal payment to see how much faster you'd be debt-free and how much interest you'd save. The standard fixed-rate formula `M = P × (r/12) / (1 − (1 + r/12)^(−n))` is used. Runs entirely in your browser.
Privacy
Runs entirely in your browser — nothing is sent to any server.
Cost
Free. No sign-up, no watermark.
Type
Calculator
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Frequently asked
Is Loan & Mortgage Calculator free to use?
Yes. Loan & Mortgage Calculator is completely free with no sign-up, no watermark, and no usage limits. Toolsly does not charge for any of its tools.
Do my files and data stay private?
Yes — Loan & Mortgage Calculator runs entirely in your browser using your device's CPU. Files and text are never uploaded to our servers, so your data stays private.
How does Loan & Mortgage Calculator work?
Open Loan & Mortgage Calculator, paste or fill in the input fields, and the result updates instantly. Everything runs in your browser — no upload, no waiting.
Which browsers does Loan & Mortgage Calculator support?
Any modern browser works — Chrome, Firefox, Safari, and Edge on desktop and mobile. Loan & Mortgage Calculator uses standard web APIs and does not require any plugin, extension, or sign-up.