Worked example
Invest $10,000 once and leave it for 15 years at an assumed 7% a year. It grows to an estimated $27,590, of which $17,590 is assumed growth.
- Amount invested
- $10,000
- Assumed return (per year)
- 7%
- Time period
- 15 years
- Estimated returns
- $17,590
- Estimated value
- $27,590
| Year | Estimated returns | Estimated value |
|---|---|---|
| 1 | $700 | $10,700 |
| 2 | $1,449 | $11,449 |
| 3 | $2,250 | $12,250 |
| 4 | $3,108 | $13,108 |
| 5 | $4,026 | $14,026 |
| 10 | $9,672 | $19,672 |
| 15 | $17,590 | $27,590 |
How to use this calculator
- Enter the amount you are investing.
- Enter the annual return you expect.
- Choose how many years it will stay invested.
Compounded annually: $10,000 at 7% for 15 years grows to $27,590.
Frequently asked questions
How long does it take for money to double?
At 7% a year, about 10.2 years, assuming the return is reinvested each year.
How much difference do ten more years make?
Leaving $10,000 invested for 25 years instead of 15 at 7% takes it from $27,590 to $54,274.
Are the returns guaranteed?
No. Investment returns vary from year to year; the calculator assumes a steady rate. For a fixed-rate deposit, use the Term Deposit Calculator instead.
Are tax and inflation included?
No. The result is before tax, charges and inflation, which differ from country to country.