Free Forex margin tool

Forex margin calculator

Estimate the margin required to open a Forex position using lot size, contract size, current conversion price, and leverage. Compare the result with your broker before placing an order.

Free to useNo signup requiredTransparent formula

Calculate estimated Forex margin

Estimate the margin needed to open a currency position. Use the conversion price that expresses the position's notional value in your account currency.

Position size (lots)Contract size per lotCurrent conversion priceLeverage ratio (for 100:1, enter 100)

Position units

100,000

Notional value

$108,500

Estimated margin

$1,085

Broker margin tiers, account currency, symbol, open positions, and regulatory rules can change the actual requirement. Confirm it in the broker's order preview.

Forex margin formula

Required margin = converted notional position value ÷ leverage. Notional value begins with lots multiplied by contract size and then uses the relevant price conversion for the account currency.

Margin calculation example

One standard lot represents 100,000 base-currency units. At a conversion price of 1.0850, the notional value is $108,500. At 100:1 leverage, the simplified margin estimate is $1,085.

Margin versus position risk

A broker may allow a position with a relatively small margin deposit, but the market exposure remains much larger. Use a separate Forex risk calculator to size the position from the stop-loss distance.

Margin call and liquidation risk

Usable margin falls when open positions lose value. Brokers apply their own margin-call and stop-out thresholds, which this simplified calculator cannot predict.

Frequently asked questions

Questions about this free tool

How is Forex margin calculated?

Estimate the position's notional value in the account currency, then divide it by the leverage ratio. Broker tiers and conversion rules can change the final requirement.

What margin is required at 100:1 leverage?

At 100:1 leverage, the estimated margin is 1% of the position's converted notional value. For example, $100,000 of notional exposure requires about $1,000 before broker adjustments.

Is margin the same as money at risk?

No. Margin is collateral required to open or maintain a leveraged position. Planned loss depends on position size, stop distance, pip value, and execution.

Why is my broker's margin different?

Account currency, pair conversion, leverage tiers, regulation, weekend rules, and existing exposure can all change broker margin.

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