How to Calculate Margin in Forex
What is Margin in Forex?
Margin is not a fee or transaction cost; it is a deposit held by the broker to cover potential losses. Think of it as a security deposit. When you trade with leverage, the broker lends you money, and the margin ensures you can cover any losses. For example, with 1:100 leverage, you control $100,000 with only $1,000 margin.
The Margin Formula
The standard formula is: Margin = (Lot Size × Contract Size × Market Price) / Leverage. Lot size can be standard (100,000 units), mini (10,000), or micro (1,000). Contract size is typically 100,000 for forex pairs. Market price is the current exchange rate. Leverage is chosen by you, e.g., 1:50, 1:100, or 1:500.
Example for Benin Traders
Suppose you want to trade 1 mini lot (10,000 units) of EUR/USD at an exchange rate of 1.10 with 1:100 leverage. Margin = (10,000 × 1.10) / 100 = $110. If your account is funded with USDT, the broker will convert USDT to USD at the current rate. Always check the broker's margin requirements for each currency pair, as they may vary.
Used Margin vs Free Margin
Used margin is the total margin required for all open positions. Free margin is the equity minus used margin. For example, if your account balance is $1,000 and you have an open trade requiring $110 margin, your used margin is $110 and free margin is $890. This free margin determines if you can open new trades.
Margin Level and Stop Out
Margin level = (Equity / Used Margin) × 100%. If your equity drops below a certain percentage (e.g., 100%), the broker may issue a margin call. At 50%, the broker may stop out your positions automatically. Benin traders should set stop-loss orders to protect their capital.