About the Trading Compounding Calculator
This trading compounding calculator shows what happens when an account grows by the same percentage every trading day, week or trade and the gains are left in to compound. Enter a starting balance, the return per period and the number of periods, and optionally a fixed withdrawal taken every so many periods, such as $200 every 20 trading days to mimic a monthly payout.
It is for forex, futures and stock traders writing a compounding plan, and for anyone sanity-checking claims like “1% a day turns $1,000 into $12,000 in a year”. The chart and table show the balance over time, the total withdrawn and how many periods it takes to double the account at that rate.
The maths assumes every period earns exactly the stated return, which real trading never does: losing streaks, variable returns and costs make actual results lower and far less smooth. Use it as an upper-bound planning tool alongside the trading expectancy and position size calculators, not as a forecast.
With the default inputs, the final balance is $12,032.16. Change any value above to recalculate instantly.
How to use the trading compounding calculator
- 1Enter your starting account balance.
- 2Enter the average return you target per day, week or trade.
- 3Set the number of periods, e.g. 250 for a year of trading days.
- 4Optionally add a withdrawal amount and how often it is taken.
- 5Compare the final balance, withdrawals and doubling time, then test lower returns.
Formula and method
Each period the balance is multiplied by one plus the return per period, so gains earn further gains. When a withdrawal is due (every N periods) it is taken after that period’s growth; if the balance is smaller than the withdrawal, only what is left is withdrawn. With no withdrawals the result reduces to the familiar compound growth formula B₀ × (1 + r)^N.
The doubling time is ln 2 ÷ ln(1 + r) periods, the exact version of the rule of 72. Total profit adds the final balance and everything withdrawn, then subtracts the starting balance. The model assumes an identical return every period with no fees, slippage or losing streaks.
- B₀
- Starting balance
- r
- Return per period (decimal)
- N
- Number of periods (days, weeks or trades)
- W
- Withdrawal amount
Worked examples
1% a day for 250 trading days on $1,000
Compounding 1% for 250 days multiplies the account by 1.01^250 = 12.03, turning $1,000 into about $12,032. The balance doubles roughly every 69.7 trading days.
$5,000 at 0.5% a day, $200 withdrawn every 20 days
Twelve monthly withdrawals of $200 take out $2,400, yet compounding at 0.5% a day still grows the account to about $12,146, a total profit of $9,546.
2% per trade over 100 trades
Making 2% on each of 100 trades compounds $10,000 to about $72,446 (1.02^100 = 7.24), doubling every 35 trades.
Frequently asked questions
How much is 1% a day compounded for a year?+
Over about 250 trading days, 1% a day multiplies an account by roughly 12 times (1.01^250 ≈ 12.03). Over 365 calendar days it would be about 37.8 times. Very few traders sustain anything close to this.
Is a daily compounding trading plan realistic?+
It is useful for setting targets, but real returns are uneven and include losing days. A 10% loss needs an 11.1% gain to recover, so variability reduces compound growth compared with a smooth average return.
What does periods to double mean?+
It is the number of periods needed to double the account at the given return with no withdrawals, calculated as ln 2 ÷ ln(1 + r). At 1% per period it is about 69.7 periods.
How are withdrawals handled?+
A withdrawal is taken after the growth of every Nth period. If the balance is less than the withdrawal amount, the remaining balance is withdrawn and the account ends at zero.
Should I compound per trade or per day?+
Use whichever unit you measure returns in. If you risk a fixed percentage per trade and know your expectancy, per-trade compounding with your trade count is usually more realistic than a daily target.
Results are estimates for educational purposes and are not financial advice. Rates, fees and terms vary — confirm with your lender or a licensed advisor before making decisions.