Position Sizing
Position Size Calculator
Calculate the exact lot size for any trade based on your account balance, risk tolerance, and stop loss distance.
0.10
Recommended Lot Size
$100
Risk Amount
$10
Pip Value (1 lot)
$100,000
Notional Value
How Position Sizing Works
Proper position sizing is the single most important aspect of risk management. The formula is:
Lot Size = (Account Balance × Risk%) ÷ (Stop Loss in pips × Pip Value)
For standard lots (100,000 units), 1 pip on EURUSD = $10. For a $10,000 account risking 1% with a 50-pip stop: ($100) ÷ (50 × $10) = 0.20 lots.
Consistent position sizing prevents any single trade from damaging your account significantly, regardless of your win rate.
Analyze Your EA's Position Sizing
Want to see how your EA's historical position sizing affected performance? Upload your backtest report to EA Analyzer Pro for a full breakdown.