Remortgage Calculator

Is your fixed rate ending? Sitting on your lender’s standard variable rate? Or just wondering if there’s a better deal out there?

Use our Remortgage Calculator to compare your current mortgage to a new one. See the impact on your monthly payments, total interest, and potential savings — all in under a minute.

Whether you’re remortgaging to save money, raise capital, or lock in a better rate, this tool gives you instant clarity before speaking to an adviser.

Advanced Remortgage Calculator - Vanilla JS

Remortgage Calculator

Find out how much you could save by switching your mortgage deal

Current Mortgage

£
£50k £500k £1M
%
1% 8% 15%
Years                   Months
Early Repayment Charges (ERC)
Do you have an ERC?

New Mortgage

£
£50k £500k £1M
%
1% 8% 15%
Years                   Months
£
£0 £2.5k £5k
Updates automatically as you move the sliders

Your Potential Savings

Monthly Payment Change
£0
Adjust the sliders to see your monthly payment difference
Annual Impact
£0
Your total yearly savings or additional cost
Total Cost Including ERC
£0
Total cost difference including all fees and charges
Current Mortgage New Mortgage
Monthly Payment - -
Total Interest - -
ERC Cost £0 -
Total Amount Paid - -
Interactive Remortgage Analysis
Use the sliders above to explore different scenarios and see real-time results

How It Works?

You’ll see:

Why Use a Remortgage Calculator?

Example Scenarios

Coming Off a Fixed Rate

Alex’s 2-year fix is ending, and he’ll be moved to 7.25% SVR. Using the calculator, he compares this to a 5.15% remortgage deal and sees a saving of £210/month.

Capital Raising

Dan and Priya want to borrow an extra £20,000 for home improvements. The calculator shows how that affects their monthly payment and total interest, so they can budget with confidence.

Comparing Fees

Ellie is looking at two new mortgage deals — one with a fee, one without. Using the calculator, she sees that even with a £999 fee, the lower interest rate saves her money within 18 months.

FAQs

A: It compares interest rates and repayments. You can manually factor in any upfront fees, or speak to us for help analysing total deal cost.

A: Yes — simply add the amount you want to borrow into the new balance figure to see how it affects monthly payments.

A: This version is for repayment mortgages. We’re working on a version for interest-only, or contact us directly for tailored advice.

A: You might face an early repayment charge (ERC). This isn’t factored into the calculator, but we can help you work it out.

A: Try to use your latest mortgage statement. If in doubt, contact us and we can do a free mortgage review for you.

Thinking About Switching? Check the Numbers First

Remortgaging can save you money, reduce your term, or release equity — but only if the deal’s right for you.

Use our free Remortgage Calculator now, and if the savings look good, we’re here to help you secure a great deal with the right lender.

No pressure. Just proper advice.