POSITION SIZE CALCULATOR
Calculate your ideal lot size based on account size, risk percentage, and stop loss.
RECOMMENDED LOT SIZE
0.33
Risking $100 with 30 pip stop loss
$100
Risk Amount
$300
Per Pip ($)
33,333
Units
How Position Sizing Works
Position sizing is the most important aspect of risk management in forex trading. It determines how many lots (or units) you should trade based on your account size and the risk you're willing to take on each trade.
The Formula
Position Size = (Account Balance × Risk %) / (Stop Loss in Pips × Pip Value). For example, with a $10,000 account risking 1% with a 30-pip stop loss on EUR/USD (standard lot pip value = $10): Position = ($10,000 × 0.01) / (30 × $10) = 0.33 lots.
Why This Matters
Without proper position sizing, even a good strategy can blow your account. Use this alongside our pip calculator and risk/reward calculator to plan every trade.