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MARGIN CALCULATOR

F&O Margin Calculator

Estimate NRML and MIS margin for Nifty, BankNifty, and stock F&O positions. Plan your trades with accurate SPAN + Exposure margin estimates before placing orders.

Estimate NRML and MIS margin for Nifty, BankNifty, and stock F&O positions. Plan your trades with accurate SPAN + Exposure margin estimates before placing orders.

  • Get an instant result with the exact inputs that matter for this metric.
  • Compare scenarios quickly (best case vs worst case) before taking action.
  • Understand what the output means and how traders/investors use it in practice.
  • Use it for planning and education — no login required.

F&O Margin Calculator

Note: Margin estimates are approximate based on typical SPAN + Exposure ratios. Actual margins are set by NSE and change daily. Check your broker for exact figures.

Lot Size

75 shares

Approx. Price

₹24,000

Total Contract Value

₹18,00,000

₹24,000 × 75 shares × 1 lots

NRML Margin

₹1,29,600

SPAN Margin (4.2%)₹75,600
Exposure Margin (3.0%)₹54,000

MIS Margin (Intraday)

₹64,800

~50% of NRML — must be squared off by 3:20 PM

Capital leverage27.8x

Margin as % of Capital

₹50,000 capitalInsufficient
₹1,00,000 capitalInsufficient
₹2,50,000 capital51.8% used
₹5,00,000 capital25.9% used
₹10,00,000 capital13.0% used

DETAILS

About this Margin Calculator (SPAN + Exposure)

This section explains what the calculator does, what goes into the result, and how to interpret the output so you can apply it confidently.

What this tool does

Purpose

This calculator turns a few key inputs into a clear output you can act on — a number that traders and investors commonly use for planning and decision-making.

Use it to compare scenarios quickly and to understand the trade-offs behind the final result.

When it is helpful

  • To sanity-check assumptions before committing money.
  • To compare two or more scenarios side-by-side (conservative vs aggressive).
  • To convert a “feel” into a number you can plan around.
  • To learn what the metric means and how it is used in practice.

How to read the result

Interpretation

Treat the output as a planning number. Small changes in inputs (time, rate, price, quantity, risk, or cashflows) can change the outcome meaningfully — so keep assumptions realistic.

If the tool returns multiple outputs, focus on the ones that drive decisions (e.g., net result, breakeven, or risk-adjusted value), not just the biggest number.

Common mistakes to avoid

  • Using overly optimistic return assumptions.
  • Ignoring fees/taxes where they matter.
  • Optimizing precision instead of making a better decision.
  • Treating the result as a prediction instead of a plan.

Example calculations and results

Example 1 (NIFTY 1 lot)

NIFTY 50: Price ₹24,000, Lot size 75, Lots 1

Contract value₹18,00,000
SPAN margin (4.2%)₹75,600
Exposure margin (3.0%)₹54,000
NRML margin₹1,29,600
MIS margin (~50%)₹64,800
Capital leverage (contract/MIS)27.8x

Graphical view

SPAN
₹75,600
Exposure
₹54,000
NRML
₹1,29,600
MIS
₹64,800

Example 2 (BANKNIFTY 2 lots)

BANKNIFTY: Price ₹52,000, Lot size 30, Lots 2

Contract value₹31,20,000
SPAN margin (5.0%)₹1,56,000
Exposure margin (3.6%)₹1,12,320
NRML margin₹2,68,320
MIS margin (~50%)₹1,34,160
Capital leverage (contract/MIS)23.3x

Graphical view

SPAN
₹1,56,000
Exposure
₹1,12,320
NRML
₹2,68,320
MIS
₹1,34,160

HOW IT WORKS

Simple steps to get your result

1

Select Instrument

Choose Nifty, BankNifty, or any listed stock futures/options.

2

Enter Position Size

Input number of lots and position type (buy/sell).

3

Get Margin Estimate

See NRML margin, MIS intraday margin, and leverage available.

FAQ

Frequently asked questions

What is SPAN margin?+

SPAN (Standard Portfolio Analysis of Risk) is the minimum margin set by NSE based on worst-case loss scenarios for your position. It is the core margin requirement.

What is Exposure margin?+

Exposure margin is an additional buffer margin charged over SPAN by NSE to cover adverse market movements. Together, SPAN + Exposure = total margin required for NRML positions.

What is MIS margin?+

MIS (Margin Intraday Square-off) is a reduced margin product offered by brokers for intraday trades. Positions must be squared off before 3:20 PM or the broker will auto-square them.

Do margins change daily?+

Yes — NSE revises margins daily (especially during volatile events like earnings or budget). Always check your broker's margin calculator for the live figure.

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