Margin calculator
Required margin = (trade size × price of base) ÷ leverage. Covers forex pairs, crypto, stock CFDs, and major indices.
Notional (USD)
110.000
Required margin (USD)
3.666,67
How to use this calculator
Margin is the deposit your broker holds while you have an open position. It is not a fee; it is collateral returned when the trade closes. The formula is:
Required Margin = (Trade Size × Price) ÷ Leverage
Inputs explained: Forex
- Instrument: the currency pair. Selecting one pre-fills a typical price.
- Trade size: units of the base currency. 1 standard lot = 100,000 units; 0.1 lot = 10,000 units.
- Leverage: e.g. enter 30 for 30:1. Retail forex leverage is typically 20–500:1 depending on regulation.
- Price: the current exchange rate for the base currency in your account currency. For EUR/USD with a USD account, enter the EUR/USD rate.
- Account currency: the currency your broker account is settled in.
Worked example
Buy 1 standard lot of EUR/USD (100,000 units) at 1.10 with 30:1 leverage.
Notional = 100,000 × 1.10 = $110,000
Required margin = $110,000 ÷ 30 = $3,667