Position Size Calculator
Eliminate sizing guesswork. Calculate your exact permissible contracts for futures (NQ, ES, CL, GC), equities, and crypto based on strict risk boundaries.
Add instrument specifications in Settings to use this calculator.
Position Sizing & Fixed-Fractional Risk Formula
The fixed-fractional position sizing model determines how many units or contracts to purchase so that if the trade hits your stop loss, you lose exactly your intended risk budget (e.g. 1% of account equity) — never more.
Contracts = Math.floor( (Account_Equity * Risk_Percentage) / (Stop_Loss_Distance * Point_Value) )Trader Risk Best Practices
- check_circleNever risk more than 1% to 2% of total account capital on any single setup.
- check_circleAlways calculate contract quantity before opening an order in your execution terminal.
- check_circleFor prop firm evaluation accounts, calculate risk against your trailing drawdown limit rather than starting balance.
Find your ideal lot size in standard, mini, or micro lots for currency pairs.
Calculate R:R ratios, break-even win rates, and target profit amounts.
Calculate required initial and maintenance margin for open positions.
Want to Enforce This Automatically On Every Trade?
FXUtilsy connects to your broker execution logs, calculates sizing boundaries in real-time, and locks out revenge tilt trades before they breach prop firm drawdown limits.