Calculate the correct lot size with this position size calculator for your forex trades based on your account balance, risk tolerance, and stop loss distance. This free calculator helps you manage risk and protect your trading capital.
Position Size Calculator
Position Value: $-
Potential Loss: $-
How to Use This Calculator
Step 1: Enter your account balance in dollars
Step 2: Enter your risk percentage per trade (most traders use 1-2%)
Step 3: Enter your stop loss distance in pips
Step 4: Enter pip value (default is $10 for standard lot, $1 for mini lot, $0.10 for micro lot)
Step 5: Click “Calculate Position Size”
The calculator will show you:
- Recommended lot size for your trade
- Dollar amount you’re risking
- Total position value
- Potential loss if stopped out
Why Position Sizing Matters
Proper position sizing is the most important risk management skill in forex trading. Without it, even the best trading strategy can destroy your account.
Professional traders follow these rules:
- Risk 1-2% of account per trade maximum
- Never risk more than you can afford to lose
- Calculate position size BEFORE entering every trade
- Use stop losses on every position
Learn more about position sizing:
Understanding the Results
Lot Size: The number of standard, mini, or micro lots to trade
Risk Amount: The exact dollar amount you’ll lose if your stop loss is hit
Position Value: The total value of your forex position
Potential Loss: Confirms your maximum risk on this trade
Risk Management Tips
1-2% Rule: Most professional traders risk only 1-2% of their account on any single trade. This protects your capital during losing streaks.
Stop Loss Discipline: Always use stop losses. Never trade without knowing your exit point.
Position Sizing Formula: Risk Amount ÷ (Stop Loss in Pips × Pip Value) = Lot Size
Other Free Forex Resources
Educational Guides:
- How to Calculate Position Size in Forex
- Understanding Leverage in Forex
- Risk Management Strategies
- How to Set Stop Loss and Take Profit
Tools & Resources:
Risk Warning
Forex trading involves substantial risk of loss and is not suitable for all investors. Never risk more than you can afford to lose. This calculator is for educational purposes only and does not constitute financial advice.