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Interest rate calculator

What if your rate changes?

See how a change of interest rates would affect your mortgage payments

Your home may be repossessed if you do not keep up repayments on your mortgage.

Let’s get started

This calculator can show you what might happen to your payments if 

•  You’re coming to the end of a fixed-rate period
•  The Bank of England base rate changes
•  You’ve temporarily changed to interest-only through the Mortgage Charter
•  You change the amount or term of your mortgage.

Mortgage Calculator

Mortgage interest rate calculator

See how a change of interest rates would affect your monthly payments.

Your rough mortgage interest rate estimate

Based on what you told us

Try a different interest rate

Today After rate change

Base rate change and mortgages

About the Bank of England base rate

Find out why the base rate affects your mortgage and use our calculator to see how your monthly payment could be affected.

Exclusive mortgage rates for existing customers

Switch to a new rate if you have a mortgage with us

If you have a mortgage with us, we can offer you exclusive rates if you want to switch to a new deal – and you could borrow more

Help with mortgage payments

Worried you can’t afford your payments?

If you're concerned that you won’t be able to make your mortgage payments, contact us right now to find out about the various ways we can help you.

Need some help?

Call us

You can call us on Monday to Friday from 7am to 8pm, and on Saturday and Sunday from 7am to 5pm.

0333 202 7580