Calculators

Mortgage Calculator

UK mortgage calculator. Work out your monthly repayments from the property price, deposit, interest rate and term, on a repayment or interest-only basis.

£
£
%
years

Enter your values and press Calculate.

How to use the Mortgage calculator

Lenders set rates by loan-to-value (LTV) band — a bigger deposit usually unlocks a lower rate, with common thresholds at 60%, 75%, 85% and 90% LTV. This calculator covers the mortgage itself; budget separately for stamp duty, legal fees, surveys and any arrangement fee.

For illustration only — speak to a mortgage adviser before committing.

Formula

Repayment: M = P × i ÷ (1 − (1 + i)−n), where P is the amount borrowed, i the monthly rate (annual rate ÷ 12) and n the number of monthly payments. Interest-only: M = P × i, with the full loan still to repay at the end.

Frequently asked questions

How much is a £270,000 mortgage per month?

At 4.5% over 25 years on a repayment basis, about £1,500 a month.

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