Free tool

Home loan repayment calculator.

Work out what your home loan really costs — with offset, extra repayments, and rate changes all modelled properly.

Open the calculator

No sign-up. No account. Your inputs save locally in your browser.

What it tells you.

Five answers most home loan calculators get wrong, or skip.

The home loan repayment calculator — left column shows loan inputs (start date, home value, loan amount, term, offset balance, interest rate, extra payments, growth rate); right column shows the monthly summary, with-and-without-offset comparison, and end-state timeline.
  • Monthly payment.

    Based on your rate, loan size, and term. Updates instantly as you change anything.

  • Offset, modelled properly.

    Plug in your offset balance and see how much interest it's actually saving you each month — and when it cancels your interest entirely.

  • Extra repayments.

    Add an annual step-up or a flat extra each month. See how many years it shaves off the loan and how much interest you save.

  • Total interest paid.

    The headline figure over the life of the loan, with and without your offset and extra payments factored in.

  • Projected home value.

    Set an assumed growth rate. See what the property could be worth on the day you pay the loan off — and what your equity looks like.

Year by year, not just the endpoint.

End-of-year balance, home value, and equity for every year of the loan. So you can see the trajectory, not just where you land.

Yearly snapshots table from the calculator: year, date, payment, balance, interest paid, home value, and equity columns, one row per year of the loan.

Plug in your numbers.

Takes about a minute. Your inputs save locally in your browser, so you can come back to them later.

No account needed.