How much margin does a trade need?
Margin is the deposit your broker sets aside to open a leveraged position. It is not a cost or a fee β it is collateral that is returned when you close the trade. This calculator tells you how much margin a given position will tie up.
How to use this calculator
Choose the pair, enter the position size in lots, the current price, and your leverage (for example 1:100). The calculator returns the notional value of the position and the margin required to hold it.
The formula
Required margin = (Units Γ Price) Γ· Leverage
At 1:100 leverage a position ties up 1% of its notional value as margin; at 1:30 it ties up about 3.3%. The result is shown in the pair’s quote currency.
Leverage cuts both ways
Higher leverage frees up margin so you can hold larger positions β but it magnifies both profit and loss in exact proportion. Always keep enough free margin to survive adverse moves and avoid a margin call.