Crypto Futures Margin Calculator
How much initial margin a perpetual position locks up, plus the opening fee. Inputs: size, mark price and leverage.
Enter size, price and leverage
Initial margin formula
Initial margin is the collateral you lock to open a position. It equals the full notional value divided by your leverage. The exchange also charges a taker fee on the notional at the moment of opening.
Example: 0.1 BTC at $94,200, 10× on Binance → Notional $9,420, Margin $942, Fee $4.71, Total $946.71.
Margin modes explained
Choose the right margin mode before opening a position — switching after entry is not always possible.
Only the margin allocated to this position is at risk. The loss cannot exceed the amount you put in. Best for speculative, high-leverage positions.
The entire wallet balance backs all open positions. A losing position can draw from the same balance as a winning one — and wipe the whole account.