Free XAUUSD risk tool

Gold position size calculator

Calculate a gold lot quantity from a price-distance stop. Use your broker’s actual ounces per lot and lot step instead of assuming every gold account uses the same pip convention.

TradeStreamAI Editorial Team · Updated · Assumptions and corrections

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Quick answer

How do I calculate XAUUSD lot size?

Divide the chosen dollar risk by entry-to-stop price distance times ounces per lot, including estimated costs per lot. Round down to the broker’s lot increment. Margin and minimum order rules are separate constraints.

Calculate XAUUSD lots from a stop

All prices and defaults are illustrative, not live market data. Enter your broker’s actual ounces per lot and lot increment. Margin is a separate check.

Risk budget

$100.00

Maximum lots

0.2

Planned loss including estimated costs

$100.00

Estimated round-trip costs

$0.00

Notional at entry

$50,000.00

Quantity is rounded down to your increment. A stop is not a guaranteed fill: gaps, slippage and costs above your estimate can increase the actual loss. Notional value is not required margin; check broker collateral and contract specifications separately.

An explicit-unit gold example

For an illustrative $10,000 balance and chosen 1% risk, the budget is $100. An entry at $2,500 and a stop at $2,495 create a $5 price distance. If the product has 100 troy ounces per lot, price risk is $500 per lot. Before costs, $100 ÷ $500 = 0.20 lots, or 20 ounces. A different contract size changes the result.

Costs, increments and short positions

Enter any estimated round-trip costs per lot and a percentage fee only if that matches your provider’s charging method. For a short position, the stop must be above entry. The calculator rounds down; it does not move your invalidation level to force a larger order.

Review the invalidation guide before sizing. Stop slippage, market gaps and unexpected costs can make realized losses larger than the planning estimate.

Frequently asked questions

Questions about this free tool

Is one gold lot always 100 ounces?

No. The tool starts with an illustrative 100-ounce contract, but you must replace that value with the specification for your broker and product. Exchange futures and other gold instruments have different contract rules.

Why does this use price distance instead of pips?

Gold pip terminology varies across platforms. An explicit price distance and ounces-per-lot multiplier make the assumed contract units visible.

Does this show required margin?

No. Notional exposure and planned stop risk are not margin. Verify collateral, leverage rules and available equity directly with your provider.

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