Free UK Mortgage Calculator 2025

Calculate Your Monthly Payments
Plan Your Mortgage with Confidence

Get instant mortgage repayment calculations with our free calculator. See exactly how much you'll pay each month and over the full term.

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Calculate Your Mortgage

Enter your mortgage details below

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Enter your loan details to see your monthly payments

Understanding Mortgage Types

Fixed Rate Mortgages

Your interest rate stays the same for a set period (typically 2, 3, 5, or 10 years).

Predictable monthly payments
Protection from rate rises
Won't benefit from rate falls

Variable Rate Mortgages

Your rate can go up or down with the market or lender's standard variable rate (SVR).

Benefit from rate falls
Often no early repayment charges
Payments can increase

Tracker Mortgages

Follows the Bank of England base rate plus a set percentage.

Transparent rate changes
Falls when base rate falls
Rate = Base rate + lender's margin

What is a Mortgage Repayment Calculator?

A mortgage repayment calculator helps you understand how much you'll pay each month for your home loan. It factors in the loan amount, interest rate, and term to give you accurate payment estimates.

Our calculator shows both repayment mortgages (where you pay off capital and interest) and interest-only mortgages (where you only pay interest monthly and repay the capital at the end).

Pro tip: Use our calculator to compare different scenarios - try adjusting the term length or interest rate to see how it affects your payments.

How to Use This Calculator

  1. Enter the amount you want to borrow (loan amount)
  2. Set your interest rate (default is 4% but adjust to match your offer)
  3. Choose your loan term in years (standard is 25 years)
  4. Select between repayment or interest-only mortgage
  5. Click "Calculate Payments" to see your monthly payment and total costs

Understanding Your Results

Monthly Payment: The amount you'll pay each month to your lender

Total Interest: The total cost of borrowing over the full term

Total Repayment: The full amount you'll pay back (loan + interest)

Remember to budget for additional costs like buildings insurance, life insurance, and maintenance

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