EUR/USD Position Size Calculator
Enter your EUR/USD entry, stop, and target, set your risk with the slider — get the exact lot size and risk:reward in one step. Free, no signup, and the math is the same one professional desks use.
Auto-filled estimate — adjust to your broker.
Estimate only. Pip value depends on your broker, contract spec, and account currency — always confirm with your broker’s calculator before trading real capital.
Sizing a EUR/USD trade
Position sizing answers one question: how large a position can I take so a loss only costs what I planned to risk? You need three numbers — your account balance, the percentage you're willing to risk, and how far your stop sits from your entry.
Worked through on EUR/USD: a $10,000 account risking 1% is $100 on the trade. Buying at 1.08450 with a stop at 1.08250 is a 20.0-pip stop. At about $10.00 per pip per lot, that's $100 ÷ (20.0 × $10.00) = 0.50 lots. Widen the stop and your size shrinks; tighten it and your size grows — but your dollar risk stays fixed every time.
Questions
How do I calculate EUR/USD lot size?
Lots = (account balance × risk %) ÷ (stop distance in pips × pip value per lot). For EUR/USD a pip is 0.0001, and one standard lot is worth roughly $10.00 per pip, so a wider stop automatically gives you a smaller position for the same dollar risk.
What is a pip worth on EUR/USD?
On EUR/USD one pip is a 0.0001 price move, worth about $10.00 per standard lot in a USD account. That figure is exact for USD-quoted pairs and moves with the exchange rate otherwise, so the calculator lets you override it to match your broker.
How much should I risk per trade?
Most disciplined traders risk 0.5–2% of their account per trade. Risking a small fixed percentage means no single EUR/USD loss can seriously damage your account, and your position size scales automatically as your balance changes.
What is a good risk-reward ratio?
Risk-reward compares the distance to your target against the distance to your stop. At 1:2, winning 40% of your trades is profitable; at 1:3, 30% is enough. Below 1:1 you need a very high win rate just to break even.
Other forex calculators
Sizing is step one. We'll handle the setups.
Breakout Alerts watches every pair and timeframe and sends you rule-based setups the moment they fire — each with a defined entry, stop, and target so you can size them with this exact math. Free for 14 days.