Position Sizing Calculator
Calculate optimal position size based on account risk and stop-loss levels.
Position Sizing Calculator
Calculate optimal position size based on account risk and stop-loss levels.
1 %
Your Results
Buy 20 shares at $100 — position $2,000
• Risking $100 if the stop at $95 fills
• That is 20% of the account (0.20x)
Share count is rounded down so the stop never risks more than your chosen percentage. Above 100% the position needs margin — a tight stop makes the sizing formula demand leverage, which is the trade-off it is showing you. Gaps and slippage can exceed the stop.