Mortgage Calculator UK
Estimate your monthly repayment mortgage costs
How to Use This UK Mortgage Calculator
Enter the property price and your deposit. The loan amount is automatically calculated as price minus deposit. Adjust the interest rate to match your mortgage offer, and set the term (typically 25 years in the UK). Click “Calculate Repayments” to see your estimated monthly payment, the total amount you’ll repay over the term, and how much interest you’ll pay.
Understanding Your Results
- Monthly Payment – what you pay each month (capital + interest).
- Total Payable – the sum of all monthly payments over the full term.
- Total Interest – the extra cost of borrowing, i.e. total payable minus the original loan amount.
This calculator assumes a standard repayment mortgage (capital and interest). Interest‑only mortgages are not covered here. For a more precise illustration, always consult a qualified mortgage adviser.
Key Factors That Influence Your Mortgage
Deposit size – A larger deposit usually means access to better interest rates. Lenders often offer their best deals at 60% LTV (loan‑to‑value) or lower. Credit score – A strong credit history helps you secure competitive rates. Mortgage term – A longer term reduces monthly payments but increases total interest paid. Interest rate type – Fixed, variable, or tracker rates affect your monthly cost. The calculator uses a constant rate for simplicity.
