Trade sizing

Margin calculator

Margin is the part of your balance a broker holds as collateral while a leveraged position is open. It depends on the position's full value and the leverage applied. Regulators cap retail leverage differently by product and region, so use the leverage your account actually offers.

Calculated from ECB euro reference rates, 2026-10-23. A daily reference rate, not a live quote.

base units

Typical — check your broker's contract specification.

Same currency, no conversion.

: 1

Result

Required margin
3,731.00 USD
Position value
111,930.00 USD

How it is calculated

  • Notional value = lots × contract size × price × quote-to-account rate
  • Required margin = notional value ÷ leverage

Worked example

EUR/USD at 1.1253, 1 lot, 30:1 leverage, USD account: notional 100,000 × 1.1253 = 112,530.00 USD; margin 112,530 ÷ 30 = 3,751.00 USD.

Assumptions and practical examples

The calculator converts the position's notional value into the account currency before applying leverage. For example, an illustrative 100,000 EUR position at 1.10 USD per EUR is 110,000 USD; at 20:1 the arithmetic margin is 5,500 USD.

Margin is collateral, not the maximum possible loss or the amount at risk at a stop. Broker tiers, hedging rules and changing requirements can produce a different required margin; use the applicable contract specification.

Questions

What does 30:1 leverage mean?

You can open a position worth up to 30 times the margin set aside. 30:1 equals a margin requirement of about 3.33%.

Is margin a fee?

No. Margin is collateral that is released when the position closes. Losses, spreads, commission and swaps are the costs.

Why does my broker show a different margin?

Brokers can set different contract sizes, leverage tiers or margin rates per instrument and account. Check the contract specification for your account.

Results are estimates for education; your broker's contract specification and prices decide the real values. Trading leveraged products carries a high risk of losing money.

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