Margin Calculator
Calculate how much margin is required to open a position. See your margin level and free margin based on leverage and lot size.
Loading live rates…
Featured
Deriv
4.0Capital at risk · T&Cs apply
Pre-loaded for your pair
Margin Calculator Formula
Margin = (Contract Size × Lots × Price × USD Rate) ÷ Leverage
Example: 1 lot EUR/USD at 1.0850, 30:1 leverage: (100,000 × 1.0850) ÷ 30 = $3,617
Margin Calculator FAQ
1What is margin in forex trading?
Margin is the collateral required by your broker to open and maintain a leveraged position. It's a portion of your account balance set aside as a deposit — not a fee.
2How is required margin calculated?
Required margin = (Contract size × Lots × Price) / Leverage. For 1 lot EUR/USD at 1.0850 with 100:1 leverage: (100,000 × 1 × 1.0850) / 100 = $1,085.
3What happens when margin level drops below 100%?
Most brokers issue a margin call around 100% margin level and begin closing positions (stop out) around 20-50%. Always maintain adequate free margin.
4What leverage should I use?
Lower leverage is safer. EU-regulated brokers cap retail forex at 30:1. Even if higher leverage is available, using 10:1-30:1 provides a safety buffer against margin calls.
Find the right broker for you
Get matched to brokers for your country, market and style — free, ~30 seconds.
Related calculators
Related Trading Terms
Top Forex Brokers
Find a broker
Ready to put your calculations to work?
Compare brokers with the lowest spreads, best execution and reliable regulation.
Calculator results are estimates only — not financial advice. Trading involves significant risk of loss. Full risk disclosure.