This free XAUUSD lot size calculator is calibrated specifically for gold's real pip mechanics ($1 of price movement = 10 pips = $10 per pip per 1.00 lot on the standard 100-oz XAUUSD contract). Unlike a generic forex lot size calculator, the gold lot size you get here is the exact number you can type into MT4, MT5, or cTrader. Enter your balance, risk %, and stop-loss pips to size XAUUSD trades safely.
XAUUSD Lot Size Calculator is part of the free Aurex Trader calculator suite — 23 browser-based tools for gold (XAUUSD) and forex traders. Nothing is installed, no account is required, and every calculation runs locally in your browser.
Formula: XAUUSD Lot Size = (Balance × Risk %) ÷ (Stop-Loss Pips × $10) Example: $10,000 balance × 1% = $100 risk. With a 100-pip SL: $100 ÷ (100 × $10) = 0.10 lot.
On standard XAUUSD contracts, 1 pip = $0.10 movement in the gold price. So gold moving from 2000.00 to 2001.00 is a 10-pip (or 100-point on 5-digit brokers) move. Some brokers quote pips as 1 point ($0.01) — always confirm with your broker.
For a 0.01 lot XAUUSD position, 1 pip is worth roughly $0.10. For 0.10 lots, 1 pip = $1. For 1.00 standard lot (100 oz), 1 pip = $10. This calculator uses the $10-per-pip-per-lot convention.
Risking 1% ($10) with a 100-pip stop loss gives you a 0.01 lot XAUUSD trade — the smallest tradable size on most brokers. On a $1,000 account, keep lot sizes at 0.01–0.02 for XAUUSD until you're consistently profitable.
Because gold's pip value and contract size differ from FX pairs. Using a generic forex lot size calculator on XAUUSD will oversize your positions and blow your account. This calculator is calibrated to real XAUUSD pip mechanics.
Yes — the standard XAUUSD contract (100 oz) is identical across regulated brokers, so the lot size output works on Exness, IC Markets, FBS, and any MT4/MT5 broker offering standard gold contracts.