Gold Lot Size Calculator for XAUUSD Risk

Lots equal cash risk divided by the stop distance in dollars per ounce multiplied by ounces per lot. On a 10,000 dollar account risking 1 percent with a 4.50 dollar stop on a 100-ounce contract, that is 0.22 lots.

Add the spread and any commission to the stop distance before sizing, set the stop from recent gold volatility rather than from comfort, and round the resulting lot size down. Position sizing failure, not strategy failure, ends most gold accounts.