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Position Size Calculator
Calculate position size based on account, risk, and stop-loss distance.
Input
Result
Position Size
50 shares
Risk Amount
$250.00
SL Distance
$5.00 (3.33%)
Position Value
$7,500.00
Account Exposure
Position 30%
At risk 1%
Survival Check
Why this matters
Position sizing removes the guesswork: every trade risks exactly the same dollar amount, no matter the stock price or volatility. The Survival Check shows how many consecutive losses your account can absorb — the number that keeps you in the game.
Conservative swing trader
$50,000 account, 1% risk, entry at $180, stop at $172. Stop distance: $8. → Buy 62 shares. If stopped out, you lose exactly $500.
Tight stop, same risk
Same account, same 1% risk, but tight $2 stop at $178. → Buy 250 shares. Tighter stop = bigger position for the same risk — you'd never guess 250 shares intuitively.
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