Why does the calculator round the lot size down?

Rounding down to the nearest valid broker lot step avoids unintentionally increasing the planned stop-loss risk above the selected target.

EdgeSync Risk Planning

Forex & Gold
Position Size Calculator

Q: How is Forex position size calculated?

The calculator divides the amount you are willing to risk by the estimated loss per standard lot at your chosen stop distance, converts the result into your account currency where required, and rounds down to a valid broker lot step.

Q: How is XAUUSD lot size calculated?

For Gold, the calculator uses the configured contract size and the absolute XAUUSD price distance between entry and stop. Because Gold CFD specifications can differ by broker, contract size, tick size and lot constraints can be customized in Advanced Settings.

Q: Why can my broker show a slightly different risk amount?

Broker contract specifications, currency conversion, spreads, commissions, slippage and execution conditions can differ. Verify the broker's instrument specification before trading.

Translate account risk and stop-loss distance into an executable lot size — with XAUUSD-first specifications, broker-aware rounding, and a deliberately simple workflow.

No login Broker-aware Gold + Forex

Position sizing inputs

Three clear steps. Broker-aware calculation underneath.

3-step flow

Account & risk

Define the account and the maximum risk for this trade.

1 of 3

Account balance

Account currency

Risk method

Risk % Fixed amount

Risk per trade

Market & stop

Select the instrument, then define where the trade becomes invalid.

2 of 3

Instrument

Loading instrument specification…

Stop-loss input mode

By price By distance

Entry price

Stop loss price

Execution specification

Use the standard broker profile or open Advanced Settings to match your broker.

3 of 3

Using the standard XAUUSD broker specification.

Advanced settings
Using standard specification

Customize broker specification

Defaults are common retail CFD/Forex conventions, not a guarantee of your broker's specification. Verify them in your trading platform.

Recommended position size

Broker-executable sizing with actual risk after rounding.

Ready

Recommended position size

—lots

Actual risk will appear here.

Rounded down to the nearest valid broker lot step when required.

Show advanced metrics
Full broker, risk and conversion breakdown

Target risk—

Selected risk—

Stop distance—

Actual loss at stop—

Theoretical position size—

Broker-rounded size—

Position units / exposure—

Pip / tick value—

Actual risk after rounding—

—

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What position sizing means

Position sizing converts a planned monetary risk into an executable trade size. Instead of choosing a lot size first, define the amount of account equity you are prepared to lose if the stop is reached, then size the position around that limit.

Position size = Risk amount ÷ Loss per standard lot at the stop

Why Gold needs broker awareness

XAUUSD is commonly quoted as U.S. dollars per troy ounce, but CFD contract size, tick size and lot constraints can vary between brokers. This calculator starts with a common 100-ounce standard-lot convention and lets you override the specification without changing the calculation method.

Forex cross-currency accounts may also require a quote-to-account conversion rate; the calculator identifies and discloses the rate source used.

Position size calculator FAQ

How is Forex position size calculated?

The calculator derives the price distance represented by your stop, computes the loss per standard lot in the pair’s quote currency, converts that amount into your account currency when needed, then divides your chosen risk amount by that loss.

How is XAUUSD lot size calculated?

For Gold, price distance is multiplied by contract size to determine the loss per standard lot. With a 100-ounce contract, an $8.00 XAUUSD move equals $800 per 1.00 lot before any account-currency conversion.

Why is the final lot size sometimes lower than the theoretical size?

The executable result is rounded down to the broker’s lot step. Rounding upward could unintentionally exceed the risk you selected, so the calculator then recomputes the actual risk from the rounded size.

Why can my broker show a slightly different amount?

Contract specifications, currency conversion, spreads, commissions, slippage and execution conditions can differ. Use Advanced Settings to match your broker and verify the broker’s own specification before trading.

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Position size is one part of structured execution.

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EdgeSync's written resource covering its integrated approach to Gold trading, Wyckoff and institutional concepts.

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Forex & GoldPosition Size Calculator