UK Calculator

Interactive Mortgage Calculator UK 2025

Real-time calculations with instant results. Save, compare, and email your scenarios.

⚡ Calculate Your Mortgage in Real-Time

Adjust any value to see instant results

£
%
£35,000
%
years

Your Results

Monthly Payment £1,892
Total Amount to Repay £567,600
Total Interest £252,600
Loan Amount £315,000
Loan to Value (LTV) 90%

💡 Understanding Your Mortgage Calculation

Monthly Payment

This is the amount you'll pay each month to your lender. It includes both capital repayment and interest (for repayment mortgages).

Total Interest

The total cost of borrowing over the entire mortgage term. Lower rates and shorter terms reduce total interest.

Loan to Value (LTV)

The percentage of the property value you're borrowing. Lower LTV gets better rates: under 60% is excellent, over 90% is expensive.

Stamp Duty

Tax on property purchases. First-time buyers pay nothing up to £425,000. Standard buyers pay nothing up to £250,000.

🎯 Tips to Reduce Your Mortgage Costs

1. Increase Your Deposit

Every 5% extra deposit can unlock better rates. Aim for at least 15% for competitive rates.

2. Improve Credit Score

Check your credit file 6 months before applying. Fix errors and pay down credit cards.

3. Compare Lenders

Rates vary significantly. Use a broker to access exclusive deals not available directly.

4. Consider Overpaying

Even £50/month extra can save thousands in interest and years off your mortgage.