Margin Calculator
Enter your lot size, leverage and currency pair to see exactly how much margin your broker will require to open the position.
To calculate required margin, enter your lot size, leverage, currency pair and account currency — the exact margin required is calculated instantly.
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How to use Margin Calculator
- 1Select the currency pair and enter the current exchange rate.
- 2Choose your lot size and leverage.
- 3See the position value and required margin in your account currency.
The formula
positionValue = units × exchangeRate. margin = positionValue ÷ leverage. Example: 1 standard lot of EUR/USD at 1.0850 with 1:100 leverage needs $1,085 margin — position value $108,500 divided by 100.
Frequently Asked Questions
What happens if my equity falls below required margin?
Your broker issues a margin call or automatically closes positions (a 'stop out') to protect against a negative balance — the exact threshold varies by broker.
Is my data uploaded anywhere?
No. Every forex calculator on this site runs entirely in your browser — nothing you enter is sent to a server.
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