Position Size Calculator

Forex Position Size Calculator

Position size = (Account × Risk %) ÷ (Stop Loss in pips × Pip Value). Risk a fixed 1–2% per trade so no single loss can hurt your account. Enter your numbers below for the exact lot size.
Position Size by Risk
Recommended Lot Size
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Risk Amount—
Units—

How to Calculate Position Size

Position sizing is the single most important risk-management skill. The formula is: Lot Size = (Account Balance × Risk %) ÷ (Stop Loss in pips × Pip Value per lot). Most pairs have a pip value of $10 per standard lot in a USD account.

InputExample
Account balance$10,000
Risk per trade1% = $100
Stop loss20 pips
Pip value (EURUSD)$10 / lot
Result$100 ÷ (20 × $10) = 0.50 lots

Trading gold? Use the dedicated gold lot size calculator. Need pip values? See the XAUUSD pip calculator.

Frequently Asked Questions

How do I calculate forex position size?
Position Size = (Account Balance × Risk%) ÷ (Stop Loss in pips × Pip Value per lot). Example: $10,000 account, 1% risk, 20-pip stop on EURUSD = $100 ÷ (20 × $10) = 0.50 lots.
What percentage should I risk per trade?
Most professional traders risk 1–2% of account equity per trade. Risking a small fixed percentage ensures a losing streak cannot wipe out the account.
What lot size for a $1000 account?
With $1,000, risking 1% ($10) on a 20-pip EURUSD stop = $10 ÷ (20 × $10) = 0.05 lots (a micro-lot position). Keep leverage and risk low on small accounts.

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