How it works

This calculator uses a standard amortising-loan formula to estimate repayments, total interest, and total paid. It also lets you see the effect of making extra repayments or holding cash in an offset account.

Examples

$500,000 over 30 years at 6.2% produces a standard monthly repayment. Even a modest ongoing extra repayment can save years and a meaningful amount of interest.

Methodology & assumptions

• Assumes a fixed rate for the full term.
• Repayments are principal and interest.
• Offset effect is shown as an illustrative saving rather than a lender-specific schedule.