Position Size Calculator
Risk Tool
Calculate the ideal lot size based on your risk per trade
USD
%
Position Size
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Lots
Units
—
Total Units
Risk Amount
—
USD at risk
Pip Value
—
per pip
↻ Reset Calculator
Developed by Ishaan
tradingwithishaan.com
This Position Size Calculator helps forex traders determine the exact lot size to trade based on their account balance, risk tolerance, and stop loss in pips. Proper position sizing is the single most important habit that separates profitable traders from those who blow their accounts. Never guess your lot size — calculate it every single time before entering a trade.
What is Position Sizing
Position sizing is determining how many lots or units to trade so that if your stop loss is hit, you only lose a predetermined percentage of your account — typically 1% to 2% per trade.
The Formula
Risk Amount = Balance × Risk%. Pip Value = Risk Amount / Stop Loss Pips. Position Size = Pip Value / (Pip Size / Rate). This ensures your loss is always controlled regardless of pair or volatility.
Recommended Risk Levels
Conservative: 0.5%–1% per trade. Moderate: 1%–2% per trade. Aggressive: 2%–5% per trade. Never risk more than 5% on a single trade. Professionals rarely exceed 2%.
How to Use This Tool
Enter your account balance, set your risk % or fixed amount, enter your stop loss in pips, select your pair and current exchange rate. The calculator instantly shows you the exact lot size to place on your broker platform.
⚠ This tool is for educational and planning purposes. Always verify position sizes with your broker before executing trades. Results are based on standard forex lot sizes (1 lot = 100,000 units).