Forex Margin Calculator

Margin required for any trade size, pair and leverage. Useful for avoiding margin calls and planning simultaneous trades.

Input

Live: 1.13550 · 2026-09-30 · ECB

Result

REQUIRED MARGIN
$1,136
To open 1.00 lot(s) of EUR/USD at 1:100
Notional Value
$113,550
100,000 base units
% of balance
2.3%
Capital committed
LOW MARGIN

Comfortable margin: you can open additional positions or size up if your strategy allows.

How this is calculated

required margin = (lots × contract size × base currency → account currency rate) ÷ leverage

Notional value is the full size of the position, not the amount you put up: lots multiplied by contract size, converted into your account currency.

Required margin is that notional divided by your leverage. Leverage of 1:30 ties up a thirtieth of the position; 1:500 ties up a five-hundredth. The margin is held by the broker for as long as the position is open.

Worked example: one standard lot of EUR/USD with the euro at 1.08 dollars is a notional of $108,000. At 1:30 leverage the required margin is 108,000 ÷ 30 = $3,600.

Formula last checked against the calculator’s code on .