Mortgage rate change calculator

You can use this calculator to work out the changes to your monthly mortgage repayments and cost of credit if:

  • The interest rate on your mortgage changes
  • You want to switch to a different mortgage rate or change the term of your mortgage
  • You have a lump sum you want to pay off your mortgage and want to see what the impact will be on your repayments
  • You have been offered an incentive to give up your tracker rate and want to see how it will affect your mortgage.

The results are estimates only and may differ slightly from some financial institutions, as the interest rate may be calculated in a slightly different way. You can also use our section on changing your mortgage to work out what option suits you best.

Please see our disclaimer for more information.

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