Mortgage Calculator

Work out what a mortgage might actually cost you each month — repayment or interest-only. Adjust the numbers below and the results update instantly.

Your mortgage details

£

If you're remortgaging, use the property's current value.

£

If you're remortgaging, enter your remaining equity, or leave as 0.

years

The average mortgage term is around 25 years.

%

Use the rate from a specific deal for an accurate figure; this is just a working example.

Include arrangement fee (optional)
£
Estimated monthly payment
£0

Based on the details you've entered

Amount borrowed £0
Loan-to-value 0%
Total interest over term £0
Total repayable £0
With interest-only, your monthly payment only covers the interest: the full amount borrowed is still owed at the end of the term and needs to be repaid separately.

What this doesn't include

This calculator shows what the mortgage itself costs: it doesn't include everything involved in buying a home. Worth budgeting separately for:

  • Stamp Duty: worth checking with our Stamp Duty Calculator, as it depends on price, location, and whether it's your first home.
  • Arrangement and valuation fees: some are included above if you added them, but check what a specific lender actually charges.
  • Legal and survey fees: for conveyancing and checking the property itself.

For the full picture on how mortgage rates and fees actually work, see our Mortgages, actually explainer.

This calculator gives an indicative estimate based on the figures you enter; it isn't a mortgage offer or personalised advice. Actual rates and payments depend on a lender's own assessment. For guidance specific to your situation, a mortgage broker or regulated financial adviser can help.