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
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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