Mortgage Repayment Calculator

See what your monthly mortgage payment would be, and how much interest you'll pay over the term, from your loan amount, interest rate and term.

Free toolUpdated June 20261 min
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%
years
Monthly payment
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Enter your details to see the payment

Estimate for a capital-and-interest (repayment) mortgage. Your lender's exact figure may vary. Not a mortgage offer.

How the monthly payment is worked out

On a repayment mortgage every monthly payment does two jobs: it covers that month's interest and chips away at the loan itself. Early on, more of the payment is interest; later, more goes on the balance, until it reaches zero and the home is yours. Three things set the payment: how much you borrow, the interest rate, and the term.

What changes your payment

A bigger loan or a higher rate pushes the payment up. A longer term lowers the monthly cost but means more interest overall; a shorter term costs more each month but far less in total. See where today's rates sit in our mortgage rates guide, and check what you can realistically borrow with the affordability calculator.

Could you pay less overall?

A lower rate, a shorter term or regular overpayments all cut the total interest. Our overpayment calculator shows how even a small amount each month can knock years off. When a deal ends, our remortgage guide helps you avoid the pricey standard variable rate.

Want the exact numbers for your situation? Debbie at DS Financial can run real lender figures, no pressure.

General information, not financial advice. The calculator is an estimate of a capital-and-interest mortgage; your lender's figures may differ.

FAQs

Repayment FAQs

How is my monthly mortgage payment worked out?
On a repayment mortgage, each payment covers the interest for that month plus a slice of the loan itself. It's calculated from three things: the amount you borrow, the interest rate, and the term (how many years you spread it over). The calculator above does the maths for you.
What's the difference between repayment and interest-only?
On repayment you pay off interest and capital, so the balance falls to zero by the end of the term and you own the home outright. On interest-only you pay just the interest, so the monthly cost is lower but the full balance is still owed at the end and must be repaid another way.
Does a longer term mean cheaper monthly payments?
Yes, stretching the term lowers each monthly payment because you're spreading the loan over more years. The trade-off is that you pay interest for longer, so the total interest over the life of the mortgage is higher.
Will my monthly payment ever change?
It can. When a fixed or tracker deal ends you usually move to the lender's higher standard variable rate, and tracker payments move with the Bank of England base rate. Remortgaging to a new deal before that happens can keep your payment down.
How can I reduce what I pay overall?
A bigger deposit, a lower rate, a shorter term, or overpaying all cut the total interest. Use our overpayment calculator to see how even small overpayments shorten the term and save interest.

Found this useful? If you'd rather talk it through with a real broker, book a free chat with DS Financial, the regulated mortgage adviser.

Book a free chat with DS Financial

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