Free UK mortgage calculator
Mortgage Repayment Calculator
Calculate your monthly mortgage repayment in the UK. Enter your property price, deposit, interest rate and term to see your repayment schedule and total cost.
Enter your details
≈ £42,750
Include property tax & insurance
Adds estimated monthly totals to your payment
Monthly payment
£1,388
/month
Loan amount
£242,250
85.0% LTV
Total interest
£174,176
over loan term
Total repaid
£416,426
25 year term
Principal vs Interest breakdown
How this calculator works
UK repayment mortgages work by combining a capital (principal) repayment with interest in every monthly payment. By the end of your term, the full mortgage is paid off.
Most UK mortgages are fixed for an initial period (commonly 2 or 5 years) before reverting to the lender's Standard Variable Rate (SVR). This calculator shows repayments based on a consistent rate — remember to budget for the possibility of rate changes at remortgage time.
Mortgage interest in the UK is calculated daily on your outstanding balance, then charged monthly. The effective rate shown assumes monthly payments and standard amortisation.
Worked example
A £285,000 property with 15% deposit at 4.8%
- 1Monthly rate: 4.8% ÷ 12 = 0.4%
- 2Months: 25 × 12 = 300
- 3Monthly repayment ≈ £1,388/month
- 4Total repaid: £1,388 × 300 = £416,400
- 5Total interest: £416,400 − £242,250 = £174,150
Frequently Asked Questions
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Try calculatorDisclaimer: Calculations are estimates for general guidance only and do not constitute regulated financial advice. Rates and costs vary by lender and property location. Stamp Duty Land Tax figures use England rates — Scotland (LBTT) and Wales (LTT) differ. Always consult an FCA-authorised mortgage adviser.