📈 Compound Interest
$2,000 at 10% for 20 Years
Investing $2,000 at 10% annual compound interest for 20 years grows to $13,455. That's $11,455 earned in interest on top of your original $2,000.
Compound Interest Calculator
Australia 2026
$
%
$
Total value after 20 years
$13,455
Amount invested$2,000
Interest earned$11,455
Interest multiplier6.73×
Year-by-year growth
| Year | Balance | Interest |
|---|---|---|
| Yr 1 | $2,200 | +$200 |
| Yr 2 | $2,420 | +$220 |
| Yr 3 | $2,662 | +$242 |
| Yr 4 | $2,928 | +$266 |
| Yr 5 | $3,221 | +$293 |
| Yr 6 | $3,543 | +$322 |
| Yr 7 | $3,897 | +$354 |
| Yr 8 | $4,287 | +$390 |
| Yr 9 | $4,716 | +$429 |
| Yr 10 | $5,187 | +$472 |
| Yr 11 | $5,706 | +$519 |
| Yr 12 | $6,277 | +$571 |
| Yr 13 | $6,905 | +$628 |
| Yr 14 | $7,595 | +$690 |
| Yr 15 | $8,354 | +$759 |
| Yr 16 | $9,190 | +$835 |
| Yr 17 | $10,109 | +$919 |
| Yr 18 | $11,120 | +$1,011 |
| Yr 19 | $12,232 | +$1,112 |
| Yr 20 | $13,455 | +$1,223 |
Final balance after 20 years
$13,455
Invested
$2,000
Interest earned
$11,455
Multiplier
6.73×
How $2,000 grows at 10%
Compound interest earns returns on your returns — not just your original investment. At 10% per year, your money doubles every 7.2 years (the Rule of 72). Over 20 years, that compounds to a 6.73× multiplier.
In year 1, $2,000 earns $200 in interest. By year 20, the annual interest has grown to $1,223 — 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 | $2,200 | +$200 | $200 | 1.10× |
| Year 2 | $2,420 | +$220 | $420 | 1.21× |
| Year 3 | $2,662 | +$242 | $662 | 1.33× |
| Year 4 | $2,928 | +$266 | $928 | 1.46× |
| Year 5 | $3,221 | +$293 | $1,221 | 1.61× |
| Year 6 | $3,543 | +$322 | $1,543 | 1.77× |
| Year 7 | $3,897 | +$354 | $1,897 | 1.95× |
| Year 8 | $4,287 | +$390 | $2,287 | 2.14× |
| Year 9 | $4,716 | +$429 | $2,716 | 2.36× |
| Year 10 | $5,187 | +$472 | $3,187 | 2.59× |
| Year 11 | $5,706 | +$519 | $3,706 | 2.85× |
| Year 12 | $6,277 | +$571 | $4,277 | 3.14× |
| Year 13 | $6,905 | +$628 | $4,905 | 3.45× |
| Year 14 | $7,595 | +$690 | $5,595 | 3.80× |
| Year 15 | $8,354 | +$759 | $6,354 | 4.18× |
| Year 16 | $9,190 | +$835 | $7,190 | 4.59× |
| Year 17 | $10,109 | +$919 | $8,109 | 5.05× |
| Year 18 | $11,120 | +$1,011 | $9,120 | 5.56× |
| Year 19 | $12,232 | +$1,112 | $10,232 | 6.12× |
| Year 20 | $13,455 | +$1,223 | $11,455 | 6.73× |
Growth chart
Balance growth over 20 years
Principal
Interest earned
Frequently asked questions
Explore other scenarios
$2,000 for 20 years — other rates
$2,000 at 10% — other time horizons
Related calculators
Compound Interest Calculator
Australia 2026
$
%
$
Total value after 20 years
$13,455
Amount invested$2,000
Interest earned$11,455
Interest multiplier6.73×
Year-by-year growth
| Year | Balance | Interest |
|---|---|---|
| Yr 1 | $2,200 | +$200 |
| Yr 2 | $2,420 | +$220 |
| Yr 3 | $2,662 | +$242 |
| Yr 4 | $2,928 | +$266 |
| Yr 5 | $3,221 | +$293 |
| Yr 6 | $3,543 | +$322 |
| Yr 7 | $3,897 | +$354 |
| Yr 8 | $4,287 | +$390 |
| Yr 9 | $4,716 | +$429 |
| Yr 10 | $5,187 | +$472 |
| Yr 11 | $5,706 | +$519 |
| Yr 12 | $6,277 | +$571 |
| Yr 13 | $6,905 | +$628 |
| Yr 14 | $7,595 | +$690 |
| Yr 15 | $8,354 | +$759 |
| Yr 16 | $9,190 | +$835 |
| Yr 17 | $10,109 | +$919 |
| Yr 18 | $11,120 | +$1,011 |
| Yr 19 | $12,232 | +$1,112 |
| Yr 20 | $13,455 | +$1,223 |