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
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. Extra Mortgage Payments Calculator -If you want to pay a lump sum off your mortgage or start paying more every month, use this calculator to see how much money you could save and whether you can shorten the term of your mortgage.

About your current mortgage


About your proposed mortgage



  Current mortgage Proposed mortgage Difference
Monthly repayments:
Total cost of credit: