F&O Margin Calculator
Margin needed for futures positions and the leverage you get.
How the F&O Margin Calculator works
Futures let you control a large contract value by blocking only a margin (SPAN + exposure), usually 12–25% of the contract value depending on the stock or index volatility. This calculator shows the contract value, margin required, leverage and how much a 1% move changes your P&L.
F&O Margin Calculator formula
How to use the F&O Margin Calculator
- Choose the contract type and enter the lot size and price.
- Enter the margin percentages for your position.
- See the approximate margin blocked for the trade.
F&O Margin Calculator: FAQs
Is this the exact margin my broker will block?
No. Exchanges publish SPAN and exposure margins daily and they change with volatility. Use your broker’s margin calculator for the exact figure; this tool helps you understand the size of the position.
Is the F&O Margin Calculator free to use?
Yes. The F&O Margin Calculator on IPO Darbaar is free, needs no sign-up and works on mobile and desktop.
Is my data saved anywhere?
No. All calculations run in your browser; the numbers you enter are not sent to or stored on our servers.
More F&O & Derivatives
All calculatorsF&O P&L Calculator
Profit or loss, breakeven and max risk for a call or put at expiry.
Option Premium & Greeks Calculator
Black-Scholes fair value of a call or put, with Delta, Gamma, Theta, Vega and Rho.
Portfolio Hedging Calculator
How many index futures lots to sell to hedge your stock portfolio.
Stock Beta Calculator
Measure how volatile a stock is compared with the market.