Trading Tools & Calculators
Free calculators for Indian intraday & F&O traders — no sign-up. Price your charges, size your risk, and plan your trades before you take them. No tips, no signals.

Brokerage & Charges Calculator
Estimate brokerage, STT, GST, stamp & exchange charges — intraday, delivery and F&O.
Position Size Calculator
Estimate shares or lots from your capital, planned risk and stop distance.
Risk-Reward Calculator
Risk-reward ratio, the win rate you need to break even, and expectancy.
Options Payoff Calculator
Build multi-leg option strategies and see payoff at expiry, max P&L and breakevens.
Tired of doing this by hand on every trade? PnL Book computes charges, R-multiples and your P&L calendar automatically from your imports.
Start freePut the numbers in context.
A calculation is a plan. Your journal shows what happened when you traded it.