MARZPosition Size Calculator
Calculate the right position size based on account risk percentage.
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About this tool
Enter your account size, risk percentage per trade, entry price, and stop-loss price to calculate the correct position size that limits your loss to your intended risk.
How to use
- Enter your account size and risk percentage per trade.
- Enter your entry price and stop-loss price.
- View the recommended position size.
FAQ
What's a typical risk percentage per trade?
Many traders use 1-2% of account size per trade to limit drawdown from any single loss, though this depends on personal risk tolerance.
How is position size calculated?
Position size = (account size × risk %) / (entry price − stop-loss price), scaled by the applicable contract or unit size.
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