Mortgage Calculator

Use our free UK Mortgage Calculator to estimate your monthly repayments and get a sense of how much you can afford to borrow. This tool includes two calculators: a repayment calculator and an affordability estimator, designed to help you plan ahead with confidence.

How the Mortgage Repayment Calculator Works

The repayment calculator shows you how much your monthly mortgage payments might be based on the loan amount, term, interest rate, and repayment type. You can compare repayment vs. interest-only options and view a year-by-year breakdown of your payments.

Affordability Calculator

Not sure how much you can afford to borrow? The affordability calculator estimates your potential purchase budget based on your monthly payment limit, deposit, and interest rate. Great for early planning or setting realistic property goals.

Frequently Asked Questions

What mortgage term should I choose?

Most UK mortgages are over 25 to 35 years, but shorter terms reduce total interest. Use the tool to compare options.

Should I use repayment or interest-only?

Repayment mortgages reduce your loan balance over time. Interest-only mortgages have lower monthly payments but require you to repay the full amount later — typically used by landlords or investors.

What interest rate should I enter?

You can enter your lender’s rate or use an average figure, such as 4.5%. Note that mortgage rates can vary by lender, term, and deposit size.

Does this include other costs?

No, this calculator only includes mortgage payments. Stamp duty, solicitor fees, and insurance should be budgeted separately.

Next Steps

Want to explore more tools? Try our Take-Home Pay Calculator, Compound Interest Calculator, or visit the tools page for more.