Mortgage Repayment Calculator

Thinking about buying a home or switching mortgage? Enter the loan amount, interest rate, and term to see your monthly repayments, total interest paid, and full repayment schedule.

How to use this calculator
Mortgage details
Monthly payment
£0.00
Amount
Loan amount
Monthly payment
Total repaid
Total interest
Amortisation

Calculating Your UK Mortgage Repayments

A mortgage is likely the largest financial commitment you’ll make. Understanding your monthly repayments and total interest costs is essential for budgeting and comparing deals.

Repayment vs Interest-Only

With a repayment mortgage, you pay off both capital and interest each month, so the loan is fully cleared by the end of the term. With interest-only, your monthly payments are lower but you must repay the full capital at the end — requiring a separate repayment strategy.

How Much Can You Borrow?

Most UK lenders apply a 4–4.5× salary multiple as a maximum loan amount. On a £50,000 salary, you could typically borrow £200,000–£225,000. The larger your deposit, the better interest rates you’ll be offered — rates improve significantly at 75% and 60% LTV (loan-to-value).