UK Mortgage Calculator 2025
Calculate your monthly mortgage repayments and total cost.
📖 How does a mortgage work?
A mortgage is a loan secured against your property, repaid in monthly instalments of capital and interest over a set term (typically 25 years). The interest rate you pay has a massive effect on total cost — a 1% difference on a £300,000 mortgage can cost over £30,000 more over 25 years.
LTV (Loan to Value) = loan ÷ property value · Lower LTV = better rates · Typical term: 25 years · Interest-only mortgages require a separate repayment plan
Monthly Payment
£1,501
per month for 25 years
LTV & Rate Guide
This calculator is for illustrative purposes only. Always speak to a mortgage broker or financial adviser before making decisions.
Mortgage rates shown are indicative. Actual rates depend on your lender, credit score, and LTV. Always get a formal mortgage illustration.