Learn how much you could borrow and see how changes to your mortgage could affect your repayments. Use our online mortgage calculators to see potential mortgage rates and compare monthly payments. Our tools are all free to use.
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Already have a mortgage with us?
If you already have a mortgage with us or want to work out more about your borrowing, we have some calculators that can help.
Home equity calculator
Already own your home? You could calculate the amount of equity you have in your property in as little as a minute.
Overpayment calculator
You could save money on interest payments by making regular monthly overpayments or paying a lump sum (subject to the terms of your mortgage).
Additional borrowing calculator
Have plans that need some extra money? Log into 'Manage your Mortgage' to calculate how much extra you can borrow on your existing mortgage.