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Property

Mortgage Repayment Calculator

Drag the sliders to see how property price, deposit, interest rate and term change your monthly repayment.

Your details

£320,000
15%

That's £48,000 up front.

4.5%

Your mortgage lender's quoted annual rate.

25 years

Updates as you change the figures. No submit button needed.

Result

£1,512/mo

£453,559 repaid in total over 25 years

Property price£320,000
Deposit£48,000
Loan amount£272,000
Total interest paid£181,559
Total repaid£453,559

How we calculate this

We use the standard repayment-mortgage formula — a fixed monthly payment across the full term, calculated from the loan amount (property price minus deposit), the monthly interest rate, and the number of monthly payments.

This assumes a fixed rate held for the entire term and doesn't account for product fees, early repayment charges, or rate changes at the end of a fixed period — all of which affect a real mortgage offer.

This tool is for general guidance only and is not financial or tax advice. Always check your own circumstances, ideally with a qualified adviser or accountant, before making decisions.

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