Run 3 return-rate scenarios to see a realistic range of outcomes — then adjust your monthly amount until it fits your budget.
Open the Money Growth Calculator| Return rate | Final balance | Total contributed |
|---|---|---|
| 5% (conservative) | ~$416,000 | $180,000 |
| 7% (mid) | ~$610,000 | $180,000 |
| 10% (optimistic) | ~$1,130,000 | $180,000 |
Investing $500 a month for 30 years means contributing $180,000 of your own money — and at a 7% return, compounding adds an extraordinary $430,000 on top, growing your balance to around $610,000. Thirty years at this level puts serious retirement wealth within reach, with compounding adding more than twice your contributions. At 10% returns the result crosses $1 million — making $500 a month over 30 years one of the clearest paths to becoming a millionaire available to everyday Australians.
If $500/month feels hard right now, test a smaller starting amount and increase it each year. Even small step-ups can move the result a lot over long horizons.
It can be. The biggest drivers are consistency and time. Use the calculator to compare multiple return scenarios.
Try 5% (conservative), 7% (mid), and 10% (optimistic) to see a range.
No. Treat results as estimates. You can lower your assumed return rate to be conservative.
If you can’t do both, extra time often helps a lot. Then increase contributions over time.
See /how-compound-interest-works.html.