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Utilities & Tools

Position Size Calculator

Never risk too much on a single trade. Calculate your exact position size in seconds.

The Most Important Calculation in Trading

Before entering any trade, you should know exactly how many shares or lots to buy. Too many traders skip this step and end up risking 10% or more of their account on a single trade. The position size calculator prevents this.

Calculator Features

  • ✓Input: account size, risk percentage, entry price, stop loss price
  • ✓Output: number of shares/lots, total position value, maximum loss amount
  • ✓F&O support with NIFTY, BANKNIFTY, and FINNIFTY lot sizes
  • ✓Account for brokerage and charges in position sizing
  • ✓Multiple risk levels: conservative (1%), moderate (2%), aggressive (3%)
  • ✓Save your default settings for quick calculations

Frequently Asked Questions

How does position sizing work?▼
Position sizing determines how many shares/lots to buy based on three inputs: your account size, the percentage you're willing to risk (e.g., 2%), and the distance between your entry price and stop loss. The calculator ensures your maximum loss on any trade stays within your risk limit.
Is this calculator free?▼
Yes, the position size calculator is completely free to use. No signup required. You can access it anytime at arthalearn.com/resources/calculators/position-size-calculator.

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