About this calculator

Standard repayment mortgage formula. Does not include property tax, insurance or fees — those vary by country.

How it works

Enter your loan amount, annual interest rate (%) and term (years). The result updates as you type, using the formula shown below. Nothing you enter is stored.

Limits

Assumes fixed rates and regular payments, and ignores fees and tax unless entered. This is not financial advice.

Who it's for

Households, borrowers, savers and small businesses comparing options.

Formula: M = P × r(1+r)^n / ((1+r)^n − 1)

Frequently asked questions

What does the Mortgage Calculator do?

Monthly mortgage payment, total interest and amortisation summary. Standard repayment mortgage formula. Does not include property tax, insurance or fees — those vary by country.

Is the Mortgage Calculator free to use?

Yes. Every calculator on Calcurly.com is free, works in your browser without sign-up, and can be embedded on your own website.

How accurate is the Mortgage Calculator?

Results are calculated in real time using the formula M = P × r(1+r)^n / ((1+r)^n − 1). Treat the output as a well-informed estimate — always cross-check with local regulations, product datasheets, or a qualified finance professional before committing to a purchase or a job.

What inputs does the Mortgage Calculator need?

Enter values for: Loan amount, Annual interest rate (%), Term (years). Sensible defaults are pre-filled where possible so you can start with a single change.

Can I embed the Mortgage Calculator on my own website?

Yes — copy the iframe snippet at the bottom of this page, or use the Embed Generator to customise the size. The embedded version stays in sync with the live calculator on Calcurly.com.