Position Size

    Position Size Calculator for Indian Traders

    Manage your capital like a professional. Work out the exact number of shares or contract lots to purchase before placing an order on Zerodha, Groww, or Dhan.

    Calculator Inputs

    Configure your trade parameters below.

    1%
    Position Analysis

    Suggested Purchase Size

    100Shares
    Position Value

    ₹2,50,000

    Risk Amount

    ₹5,000 (1% )

    Risk Per Share

    ₹50.00

    Leftover Capital

    ₹2,50,000

    How to use this tool

    1. 01

      Enter your Account Capital (e.g., ₹5,00,000) and choose the maximum risk per trade (typically 1% to 2%).

    2. 02

      Input your planned Entry Price and your technical Stop-Loss level.

    3. 03

      Toggle your Instrument Type (Equity, Futures, or Options). If using Futures or Options, verify the Lot Size.

    4. 04

      Check the results instantly: view the shares or lots to buy, position value, and total risk amount.

    Position Sizing Formulas

    The calculator determines your trade exposure and quantity using standard risk parameters:

    Risk Amount (₹) = Account Capital * (Risk per Trade % / 100)
    Risk per Share (₹) = |Entry Price - Stop-Loss Price|
    Position Size (Shares) = Risk Amount / Risk per Share
    Total Position Value (₹) = Position Size * Entry Price
    For Futures & Options:
    Suggested Lots = Floor(Position Size / Lot Size)
    Leftover Capital = Account Capital - (Suggested Lots * Lot Size * Entry Price)

    Frequently Asked Questions

    Why is position sizing important in trading?

    Position sizing is the single most critical factor in risk management. It ensures that no single trade can cause catastrophic damage to your account. If your risk per trade is capped at 1%, you would theoretically need 100 consecutive losing trades to completely wipe out your account capital.

    How does the Futures & Options lot calculation work?

    For Futures and Options, trading is restricted to standard contract lot sizes (e.g., Nifty is 65, Bank Nifty is 30 from the January 2026 NSE revision). The calculator calculates the raw maximum share quantity based on your risk rules, then divides it by your specified lot size, rounding down to output the exact number of lots to buy.

    What does the unutilized capital output mean?

    Since F&O trading requires buying in fixed lots, you cannot purchase fractional lots. The 'Unutilized Capital' displays the portion of your account capital that remains unallocated after buying the suggested whole number of lots.

    What does the leverage/margin warning indicate?

    If the total position value of your shares exceeds your total account capital, it means the trade requires leverage (margin) to execute. The calculator assumes a cash-equivalent exposure and doesn't calculate exact broker SPAN or exposure margin requirements.

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