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UK mortgage calculators

Get the numbers that matter, before the conversations that count.

No sign-up or data stored
2026 rates and thresholds
Accurate results every time
Calculator

Mortgage repayment calculator

Work out your monthly mortgage payment based on your property price, deposit, interest rate, and term.

Calculate repayments
Most popular
Calculator

Mortgage overpayment calculator

See how much time and interest you could save by paying a little extra off your mortgage each month.

Calculate savings
Calculator

Stamp duty
calculator

See exactly how much SDLT you will pay on your purchase in England or Northern Ireland, with a full breakdown by tax band.

Calculate stamp duty
How it works
Three steps to know your numbers.
1

Pick your calculator

Choose from repayment, stamp duty, or overpayment savings. Pick whichever question you need answering first.

2

Enter your details

No account needed. Just a few numbers: your property price, rate, and term. You will have an answer in seconds.

3

Speak to a broker

When you are ready, our broker partners can search thousands of mortgage deals to find the right fit for you.

Ready to find your mortgage?

Our calculators give you the numbers.
A qualified mortgage broker finds you the right deal.
Connect with a broker today.

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