How to Calculate Margin in Forex
What is Margin in Forex?
Margin is not a fee or cost; it is a security deposit that brokers hold to cover potential losses. In the UAE, DFSA-regulated brokers require margin as a percentage of the full trade size. For example, a 1% margin requirement means you need $1,000 to control a $100,000 position.
The Margin Formula
The basic formula is: Required Margin = (Trade Size / Leverage) × Exchange Rate (if applicable). For a standard lot (100,000 units) of EUR/USD at 1:30 leverage, the margin is 100,000 / 30 = $3,333.33. If your account is in AED, multiply by 3.6725 to get AED 12,241.67.
Example for UAE Traders
Suppose you trade 0.5 lots of GBP/USD at 1:20 leverage. Trade size = 50,000 units. Margin = 50,000 / 20 = $2,500. In AED, that’s $2,500 × 3.6725 = AED 9,181.25. Always check your broker’s margin calculator for exact figures.
Used vs. Free Margin
Used margin is the total margin locked by open positions. Free margin is the equity minus used margin. For UAE high-net-worth traders, maintaining sufficient free margin is critical to avoid margin calls. DFSA brokers require at least 100% margin level (equity/used margin).