Interest rate calculator

What would a new rate mean for your mortgage?

Find out what your mortgage payments would be if you were paying a different rate of interest.

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

Let’s get started

Try our calculator to see how your monthly payment would be at a new interest rate. It’s helpful if you’re coming to the end of a fixed-rate period, shopping for a new deal or you’re thinking about potential changes to the Bank of England base rate.

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 how the recent increase in the base rate set by the UK’s central bank affects your mortgage.


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.

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Call us1 today on 0800 197 1081. Lines are open all day, every day, except on bank holidays and during Christmas, when they may be closed at off-peak times.

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