Compounding Calculator
See how consistent percentage gains compound over time — with optional withdrawals, milestone markers, and a period-by-period breakdown.
e.g. 1 = 1% per day, week, or month
Trading days, weeks, or months
Leave at 0 for pure compounding
Final balance after 50 periods
$82,231.59
Started at $50,000.00 · grew +64.5%
Total profit (in account)
+$32,231.59
64.5% growth
Gain per period (final period)
$822.32
1% of $82,231.59
2× doubling period
Beyond range
Rule of 72 ≈ 72 periods
Balance over 50 periods
Period snapshots
| Period | Balance | Profit | Growth |
|---|---|---|---|
| 1 | $50,500.00 | +$500.00 | +1.0% |
| 5 | $52,550.50 | +$2,550.50 | +5.1% |
| 10 | $55,231.11 | +$5,231.11 | +10.5% |
| 25 | $64,121.60 | +$14,121.60 | +28.2% |
| 50◀ final | $82,231.59 | +$32,231.59 | +64.5% |
Compounding assumes a consistent gain every period with no losing periods. Real trading has losing days — this is a projection tool, not a guarantee. The power of compounding only works when gains are left in the account to grow.