How to Calculate Margin in Forex
What is Margin in Forex?
Margin is not a fee or a transaction cost; it is a security deposit held by the broker to cover potential losses. In retail forex trading, margin is expressed as a percentage of the total trade size. For example, a 1% margin requirement means you need $1,000 to control a $100,000 position.
Margin Calculation Formula
The basic formula is: Margin = (Lot Size × Contract Size × Current Price) / Leverage. For a standard lot (100,000 units) of EUR/USD at 1.1000 with 1:100 leverage, the calculation is: (1 × 100,000 × 1.1000) / 100 = $1,100. If you use 1:50 leverage, margin would be $2,200.
Example for Cape Verde Traders
Suppose you want to trade 0.5 lots of GBP/USD at 1.3000 with 1:200 leverage. Margin = (0.5 × 100,000 × 1.3000) / 200 = 325 USD. This means you need $325 in your account to open the trade. Always remember that margin requirements can change based on market volatility and broker policies.
Used Margin vs. Free Margin
Used Margin is the total margin currently locked by open positions. Free Margin is the equity minus used margin, available for new trades. For example, if you deposit $2,000 and use $1,100 as margin, your free margin is $900. If losses reduce equity below used margin, you may face a margin call.