Position size calculator
How big should your trade be? Size it from your risk, not your feelings.
Money at risk
$10
Recommended position size
0.03
Units
3,333
If you hit a losing streak
Losing streaks are normal — even good strategies hit 5+ losses in a row. This is what your balance looks like after one, at your risk setting versus an aggressive one.
| Losses in a row | 1% risk | 5% risk |
|---|---|---|
| 3 | $970 (97%) | $857 (86%) |
| 5 | $951 (95%) | $774 (77%) |
| 10 | $904 (90%) | $599 (60%) |
| 20 | $818 (82%) | $358 (36%) |
Rule of thumb: risk 1% or less per trade. The calculator sizes your position so that hitting your stop-loss costs exactly the amount you chose to risk — no more.
Put it into practice — risk-free
Find a regulated broker with a free demo and test your sizing with virtual funds before any real money is involved.
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Tools
Educational tools only — results are estimates and not financial advice. Real trading involves risk of loss; most beginners lose money.