📖How to Use the Margin Calculator
1Enter Contract Details
Select instrument type, enter the underlying asset price, contract multiplier, and number of contracts. For S&P 500 E-mini futures, the multiplier is $50.
2Enter Margin Rate
Input your broker's initial margin rate. This varies by instrument and broker — typically 5-15% for equity futures.
3Understand Liquidation Price
The theoretical liquidation price is where your margin is fully depleted. In practice, a margin call occurs before this point (at the maintenance margin level).