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Risk 1%. Every trade.

Position sizing is the difference between traders who survive and traders who blow up. Enter your numbers — get your exact share count.

Account size ($)

Risk per trade (%) — pros use 1–2%

Entry price ($)

Stop price ($)

Dollars at risk

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Position value

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Risk vs account

At risk on this trade Rest of account

Educational tool only — not financial advice. Assumes a long position and a hard stop that fills at the stop price; gaps and slippage can make real losses larger. Shares are rounded down to whole shares.

The 1% rule (30-second version)

Decide risk first. Risk 1% of your account per trade — on $10,000, that's $100 max loss.
Let the stop set the size. Shares = dollars at risk ÷ (entry − stop). Wide stop = fewer shares. That's the whole formula.
Ten losers in a row = −10%. At 1% risk you survive streaks that wipe out undisciplined traders.