How to Calculate Margin in Forex
What is Margin in Forex?
Margin is not a fee or cost—it is a security deposit that your broker holds while your trade is open. It allows you to control a large position with a small amount of capital. For example, with 1:100 leverage, you can control $100,000 with just $1,000 margin. In Maldives, where many traders use USD accounts, margin is always calculated in USD.
The Margin Formula
The standard formula is: Required Margin = (Lot Size × Contract Size × Market Price) / Leverage. Lot size is the number of units you trade (standard lot = 100,000 units, mini lot = 10,000 units, micro lot = 1,000 units). Contract size is typically 100,000 for standard lots. Market price is the current exchange rate. Leverage is the multiplier your broker offers.
Example for Maldives Traders
Suppose you want to buy 1 standard lot of EUR/USD at 1.1000 with 1:100 leverage. Margin = (1 × 100,000 × 1.1000) / 100 = 1,100 USD. If you deposit via Skrill or Bank Transfer, this amount is deducted from your account balance as margin. Your free margin (available for new trades) is your account balance minus used margin.
Margin Level and Margin Call
Margin level = (Equity / Used Margin) × 100%. If your equity drops to 50% of used margin, your broker may issue a margin call. In Maldives, many brokers set stop-out at 20% or 50%. Always keep your margin level above 200% to avoid forced closures. Use stop-loss orders and avoid over-leveraging.