📈 Compound Interest
$5,000 at 6% for 20 Years
Investing $5,000 at 6% annual compound interest for 20 years grows to $16,036. That's $11,036 earned in interest on top of your original $5,000.
Compound Interest Calculator
Australia 2026
$
%
$
Total value after 20 years
$16,036
Amount invested$5,000
Interest earned$11,036
Interest multiplier3.21×
Year-by-year growth
| Year | Balance | Interest |
|---|---|---|
| Yr 1 | $5,300 | +$300 |
| Yr 2 | $5,618 | +$318 |
| Yr 3 | $5,955 | +$337 |
| Yr 4 | $6,312 | +$357 |
| Yr 5 | $6,691 | +$379 |
| Yr 6 | $7,093 | +$401 |
| Yr 7 | $7,518 | +$426 |
| Yr 8 | $7,969 | +$451 |
| Yr 9 | $8,447 | +$478 |
| Yr 10 | $8,954 | +$507 |
| Yr 11 | $9,491 | +$537 |
| Yr 12 | $10,061 | +$569 |
| Yr 13 | $10,665 | +$604 |
| Yr 14 | $11,305 | +$640 |
| Yr 15 | $11,983 | +$678 |
| Yr 16 | $12,702 | +$719 |
| Yr 17 | $13,464 | +$762 |
| Yr 18 | $14,272 | +$808 |
| Yr 19 | $15,128 | +$856 |
| Yr 20 | $16,036 | +$908 |
Final balance after 20 years
$16,036
Invested
$5,000
Interest earned
$11,036
Multiplier
3.21×
How $5,000 grows at 6%
Compound interest earns returns on your returns — not just your original investment. At 6% per year, your money doubles every 12 years (the Rule of 72). Over 20 years, that compounds to a 3.21× multiplier.
In year 1, $5,000 earns $300 in interest. By year 20, the annual interest has grown to $908 — because each year's interest is calculated on a larger balance.
Year-by-year projection
| Year | Balance | Interest this year | Total interest | Growth |
|---|---|---|---|---|
| Year 1 | $5,300 | +$300 | $300 | 1.06× |
| Year 2 | $5,618 | +$318 | $618 | 1.12× |
| Year 3 | $5,955 | +$337 | $955 | 1.19× |
| Year 4 | $6,312 | +$357 | $1,312 | 1.26× |
| Year 5 | $6,691 | +$379 | $1,691 | 1.34× |
| Year 6 | $7,093 | +$401 | $2,093 | 1.42× |
| Year 7 | $7,518 | +$426 | $2,518 | 1.50× |
| Year 8 | $7,969 | +$451 | $2,969 | 1.59× |
| Year 9 | $8,447 | +$478 | $3,447 | 1.69× |
| Year 10 | $8,954 | +$507 | $3,954 | 1.79× |
| Year 11 | $9,491 | +$537 | $4,491 | 1.90× |
| Year 12 | $10,061 | +$569 | $5,061 | 2.01× |
| Year 13 | $10,665 | +$604 | $5,665 | 2.13× |
| Year 14 | $11,305 | +$640 | $6,305 | 2.26× |
| Year 15 | $11,983 | +$678 | $6,983 | 2.40× |
| Year 16 | $12,702 | +$719 | $7,702 | 2.54× |
| Year 17 | $13,464 | +$762 | $8,464 | 2.69× |
| Year 18 | $14,272 | +$808 | $9,272 | 2.85× |
| Year 19 | $15,128 | +$856 | $10,128 | 3.03× |
| Year 20 | $16,036 | +$908 | $11,036 | 3.21× |
Growth chart
Balance growth over 20 years
Principal
Interest earned
Frequently asked questions
Explore other scenarios
$5,000 for 20 years — other rates
$5,000 at 6% — other time horizons
Related calculators
Compound Interest Calculator
Australia 2026
$
%
$
Total value after 20 years
$16,036
Amount invested$5,000
Interest earned$11,036
Interest multiplier3.21×
Year-by-year growth
| Year | Balance | Interest |
|---|---|---|
| Yr 1 | $5,300 | +$300 |
| Yr 2 | $5,618 | +$318 |
| Yr 3 | $5,955 | +$337 |
| Yr 4 | $6,312 | +$357 |
| Yr 5 | $6,691 | +$379 |
| Yr 6 | $7,093 | +$401 |
| Yr 7 | $7,518 | +$426 |
| Yr 8 | $7,969 | +$451 |
| Yr 9 | $8,447 | +$478 |
| Yr 10 | $8,954 | +$507 |
| Yr 11 | $9,491 | +$537 |
| Yr 12 | $10,061 | +$569 |
| Yr 13 | $10,665 | +$604 |
| Yr 14 | $11,305 | +$640 |
| Yr 15 | $11,983 | +$678 |
| Yr 16 | $12,702 | +$719 |
| Yr 17 | $13,464 | +$762 |
| Yr 18 | $14,272 | +$808 |
| Yr 19 | $15,128 | +$856 |
| Yr 20 | $16,036 | +$908 |