Size positions, don't guess them
The calculator is a single Google Sheet. You enter three numbers; it returns your position size.
Inputs you provide
- Account size — total trading capital in your base currency (₹, $, €, whichever).
- Risk per trade — percent of account you're willing to lose on one trade. 0.5-1% is a reasonable default.
- Entry, stop, and symbol ATR — copy directly from the Golden Indicator readout on your chart.
Outputs
- Position size in lots (for F&O), contracts (for futures), or shares / units (for equities and crypto).
- Currency risk on the trade, in your base currency.
- 1R target — the distance you're risking, projected forward.
Why ATR-based sizing beats fixed-position sizing
A fixed 1-lot or 1-contract position carries very different real-currency risk when volatility doubles — your downside silently scales with it. ATR-based sizing keeps your currency risk constant by shrinking the position when volatility is high, regardless of whether you're trading BankNifty, Gold futures, or SPX options.
Where to find it
Your purchase email contains a Google Sheet link. Click File → Make a copy to save your own editable version.