📈 Compound Interest
$5,000 at 5% for 30 Years
Investing $5,000 at 5% annual compound interest for 30 years grows to $21,610. That's $16,610 earned in interest on top of your original $5,000.
Compound Interest Calculator
Australia 2026
$
%
$
Total value after 30 years
$21,610
Amount invested$5,000
Interest earned$16,610
Interest multiplier4.32×
Year-by-year growth
| Year | Balance | Interest |
|---|---|---|
| Yr 1 | $5,250 | +$250 |
| Yr 2 | $5,513 | +$263 |
| Yr 3 | $5,788 | +$276 |
| Yr 4 | $6,078 | +$289 |
| Yr 5 | $6,381 | +$304 |
| Yr 6 | $6,700 | +$319 |
| Yr 7 | $7,036 | +$335 |
| Yr 8 | $7,387 | +$352 |
| Yr 9 | $7,757 | +$369 |
| Yr 10 | $8,144 | +$388 |
| Yr 11 | $8,552 | +$407 |
| Yr 12 | $8,979 | +$428 |
| Yr 13 | $9,428 | +$449 |
| Yr 14 | $9,900 | +$471 |
| Yr 15 | $10,395 | +$495 |
| Yr 16 | $10,914 | +$520 |
| Yr 17 | $11,460 | +$546 |
| Yr 18 | $12,033 | +$573 |
| Yr 19 | $12,635 | +$602 |
| Yr 20 | $13,266 | +$632 |
| Yr 21 | $13,930 | +$663 |
| Yr 22 | $14,626 | +$696 |
| Yr 23 | $15,358 | +$731 |
| Yr 24 | $16,125 | +$768 |
| Yr 25 | $16,932 | +$806 |
| Yr 26 | $17,778 | +$847 |
| Yr 27 | $18,667 | +$889 |
| Yr 28 | $19,601 | +$933 |
| Yr 29 | $20,581 | +$980 |
| Yr 30 | $21,610 | +$1,029 |
Final balance after 30 years
$21,610
Invested
$5,000
Interest earned
$16,610
Multiplier
4.32×
How $5,000 grows at 5%
Compound interest earns returns on your returns — not just your original investment. At 5% per year, your money doubles every 14.4 years (the Rule of 72). Over 30 years, that compounds to a 4.32× multiplier.
In year 1, $5,000 earns $250 in interest. By year 30, the annual interest has grown to $1,029 — 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 | $5,250 | +$250 | $250 | 1.05× |
| Year 2 | $5,513 | +$263 | $513 | 1.10× |
| Year 3 | $5,788 | +$276 | $788 | 1.16× |
| Year 4 | $6,078 | +$289 | $1,078 | 1.22× |
| Year 5 | $6,381 | +$304 | $1,381 | 1.28× |
| Year 6 | $6,700 | +$319 | $1,700 | 1.34× |
| Year 7 | $7,036 | +$335 | $2,036 | 1.41× |
| Year 8 | $7,387 | +$352 | $2,387 | 1.48× |
| Year 9 | $7,757 | +$369 | $2,757 | 1.55× |
| Year 10 | $8,144 | +$388 | $3,144 | 1.63× |
| Year 11 | $8,552 | +$407 | $3,552 | 1.71× |
| Year 12 | $8,979 | +$428 | $3,979 | 1.80× |
| Year 13 | $9,428 | +$449 | $4,428 | 1.89× |
| Year 14 | $9,900 | +$471 | $4,900 | 1.98× |
| Year 15 | $10,395 | +$495 | $5,395 | 2.08× |
| Year 16 | $10,914 | +$520 | $5,914 | 2.18× |
| Year 17 | $11,460 | +$546 | $6,460 | 2.29× |
| Year 18 | $12,033 | +$573 | $7,033 | 2.41× |
| Year 19 | $12,635 | +$602 | $7,635 | 2.53× |
| Year 20 | $13,266 | +$632 | $8,266 | 2.65× |
| Year 21 | $13,930 | +$663 | $8,930 | 2.79× |
| Year 22 | $14,626 | +$696 | $9,626 | 2.93× |
| Year 23 | $15,358 | +$731 | $10,358 | 3.07× |
| Year 24 | $16,125 | +$768 | $11,125 | 3.23× |
| Year 25 | $16,932 | +$806 | $11,932 | 3.39× |
| Year 26 | $17,778 | +$847 | $12,778 | 3.56× |
| Year 27 | $18,667 | +$889 | $13,667 | 3.73× |
| Year 28 | $19,601 | +$933 | $14,601 | 3.92× |
| Year 29 | $20,581 | +$980 | $15,581 | 4.12× |
| Year 30 | $21,610 | +$1,029 | $16,610 | 4.32× |
Growth chart
Balance growth over 30 years
Principal
Interest earned
Frequently asked questions
Explore other scenarios
$5,000 for 30 years — other rates
$5,000 at 5% — other time horizons
Related calculators
Compound Interest Calculator
Australia 2026
$
%
$
Total value after 30 years
$21,610
Amount invested$5,000
Interest earned$16,610
Interest multiplier4.32×
Year-by-year growth
| Year | Balance | Interest |
|---|---|---|
| Yr 1 | $5,250 | +$250 |
| Yr 2 | $5,513 | +$263 |
| Yr 3 | $5,788 | +$276 |
| Yr 4 | $6,078 | +$289 |
| Yr 5 | $6,381 | +$304 |
| Yr 6 | $6,700 | +$319 |
| Yr 7 | $7,036 | +$335 |
| Yr 8 | $7,387 | +$352 |
| Yr 9 | $7,757 | +$369 |
| Yr 10 | $8,144 | +$388 |
| Yr 11 | $8,552 | +$407 |
| Yr 12 | $8,979 | +$428 |
| Yr 13 | $9,428 | +$449 |
| Yr 14 | $9,900 | +$471 |
| Yr 15 | $10,395 | +$495 |
| Yr 16 | $10,914 | +$520 |
| Yr 17 | $11,460 | +$546 |
| Yr 18 | $12,033 | +$573 |
| Yr 19 | $12,635 | +$602 |
| Yr 20 | $13,266 | +$632 |
| Yr 21 | $13,930 | +$663 |
| Yr 22 | $14,626 | +$696 |
| Yr 23 | $15,358 | +$731 |
| Yr 24 | $16,125 | +$768 |
| Yr 25 | $16,932 | +$806 |
| Yr 26 | $17,778 | +$847 |
| Yr 27 | $18,667 | +$889 |
| Yr 28 | $19,601 | +$933 |
| Yr 29 | $20,581 | +$980 |
| Yr 30 | $21,610 | +$1,029 |