Position size calculator
Fixed risk per trade is the only way a small account survives a losing streak. This calculator turns your balance and chosen risk percentage into a stake size, a daily loss ceiling and a reality check for consecutive losses.
2%
1–2% per trade is recommended. Higher values accelerate drawdowns.
Recommended stake
$20.00
Max daily loss
$100.00
Streak to 50% drawdown
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What the streak table shows
Even with positive expectancy, losing streaks happen. The table below shows how much would remain after N identical trades if every trade loses. It is not a forecast; it is a sanity check. If the drawdown after 5–6 trades feels too large, lower your risk.
| Losses in a row | Account remaining | Total lost |
|---|---|---|
| 1 | $980.00 | $20.00 |
| 2 | $960.40 | $39.60 |
| 3 | $941.19 | $58.81 |
| 4 | $922.37 | $77.63 |
| 5 | $903.92 | $96.08 |
| 6 | $885.84 | $114.16 |
| 7 | $868.13 | $131.87 |
| 8 | $850.76 | $149.24 |
| 9 | $833.75 | $166.25 |
| 10 | $817.07 | $182.93 |
| 11 | $800.73 | $199.27 |
| 12 | $784.72 | $215.28 |
| 13 | $769.02 | $230.98 |
| 14 | $753.64 | $246.36 |
| 15 | $738.57 | $261.43 |
How to use the result
- Place exactly the calculated amount on every trade, regardless of how "confident" a signal feels.
- If the daily loss limit is hit, close the app until the next trading day.
- Do not change stake size after a win or a loss. That is the first step toward martingale.
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