Loan Calculator Australia
Estimate repayments, total interest and your full amortisation schedule.
Last updated: January 2025 · Built for the 2024–25 financial year
Inputs
Results
Repayment (monthly)
$2,770.73
Total repayments
$997,462
Total interest
$547,462
Number of payments
360
Loan term
30 yrs
Results are estimates only. For financial advice, consult a licensed adviser.
Overview
Generic loan repayment & amortisation
Most consumer loans — personal, car, secured, unsecured — share the same amortised structure. Each payment splits between interest (rate × outstanding balance) and principal, with the principal share growing each period.
Total interest paid is roughly equal to principal at 7% over 15 years — a useful sanity check before signing.
Formula
Amortised payment
M = P · r(1+r)^n / ((1+r)^n − 1)
Common Aus loan ranges
| Loan type | Typical rate (May 2026) |
|---|---|
| Variable home loan | 5.9 – 6.5% |
| Fixed 3-yr home loan | 5.6 – 6.2% |
| Personal loan (unsecured) | 9 – 16% |
| Car loan (secured, new) | 6 – 9% |
| Credit card | 18 – 24% |
Pro tips
- •Always compare on comparison rate — it includes fees.
- •Pay weekly or fortnightly to slash term.
- •Refinance every 2-3 years to capture rate competition.