Margin & Leverage Calculator
Work out how much margin a trade ties up at your leverage — and the true notional size of the position you're controlling.
How margin is calculated & why leverage matters
Required margin = (position units × price) ÷ leverage → converted to your account currency
Leverage lets you control a large position with a small deposit (the margin). At 1:30, a $108,500 position needs about $3,617 of margin. Higher leverage frees up capital but magnifies both gains and losses, and leaves less buffer before a margin call.
- Notional value is the full size of what you control (units × price).
- Margin is the slice of your own money set aside to hold it.
Risk warning: Leverage can wipe out an account quickly. Retail leverage caps vary by regulator (e.g. 1:30 major FX in the EU/UK/AU). This is educational, not financial advice — confirm margin terms with your broker.