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Compound interest calculator
Compounding is the slowest, most reliable magic in personal finance. Change one number below and watch the last decade do most of the work.
After 25 years
$248,747
Projected balance
You put in
$91,000
Your own money
Growth
$157,747
63% of the total
The long game
| Years | Balance | Deposited | Growth |
|---|---|---|---|
| 5 | $22,895 | $19,000 | $3,895 |
| 10 | $53,935 | $37,000 | $16,935 |
| 20 | $160,317 | $73,000 | $87,317 |
| 30 | $374,108 | $109,000 | $265,108 |
Projections assume a constant annual return compounded monthly and ignore taxes and fees. Real markets go up and down. Educational only — not financial advice, and no guarantee of any result.
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