Mortgage Calculator
Estimate principal-and-interest home loan repayments and total interest owed over the loan term at current Australian mortgage interest rates today.
How this calculator works
Estimate principal-and-interest repayments on an Australian home loan. Enter the loan amount, interest rate and term to calculate repayments and total interest paid.
What changes your mortgage repayment the most
For a principal-and-interest home loan, the repayment is mainly driven by the amount borrowed, the interest rate, the loan term and how often you repay. Changing any one of those inputs can materially change both the regular repayment and the total interest over the life of the loan.
Use the calculator to test more than one scenario instead of relying on a single interest-rate assumption. A higher-rate scenario can show how much room you have in your budget if lending rates rise.
- Compare repayments at different interest rates
- See the effect of a shorter or longer loan term
- Estimate total interest as well as the regular repayment
Mortgage repayment estimate versus borrowing approval
A repayment calculator answers what a loan would cost under the inputs you choose. It does not decide how much a lender will approve, because lenders separately assess income, expenses, existing debts, credit policy and serviceability buffers.
Official sources and assumptions
Check the underlying Australian Government guidance used to review this calculator's rates and assumptions.
Frequently asked questions
Does this include fees?
No. Application, valuation and ongoing account fees are not included in the repayment figure.
Should I pay weekly or monthly?
Fortnightly or weekly repayments at half or a quarter of the monthly amount effectively add an extra month a year.
Is my rate fixed?
The calculator assumes a constant rate. Variable rates change over the life of a loan.
Results are estimates only and are not financial, tax, legal or credit advice.