Free Tools
Six free calculators built for Indian retail traders.
Every tool below runs entirely in the browser. Trade data never leaves your device unless you specifically request a follow-up report by email. No sign-up to use the calculators.
Sizing · Survival
Risk of Ruin Calculator
The probability your account hits zero, given win rate, reward-to-risk, and risk per trade. Sixty seconds of math; years of consequence.
Edge measurement
Trade Expectancy Calculator
The rupee value of an average trade. The single most under-taught number in Indian retail trading. With a one-year projection.
Pre-trade discipline
Position Sizing Calculator
Quantity, rupee risk, reward-to-risk, full Indian round-trip cost stack. The only Indian-market sizing tool that includes STT, GST, brokerage cap, and stamp duty in one place.
Process review
Trade Journal Auto-Grader
Upload your CSV. Get A/B/C process grades on every trade, expectancy in R, and the behavioural patterns the data reveals. All client-side — trade data stays in your browser.
Optimal sizing
Kelly Criterion Calculator
The mathematically-optimal fraction of capital to risk per trade — full Kelly, half Kelly, quarter Kelly, with the Indian-market drawdown caveats most retail tools skip.
Cost transparency
Indian F&O Cost Estimator
Round-trip cost, breakeven move, and cost-to-edge ratio for any Indian trade. STT, brokerage, GST, exchange charges, SEBI fee, stamp duty — the full statutory stack.
Practice · Process
Trade Simulator
Paper-trade six real Indian market scenarios — Adani crash, COVID drawdown, expiry-week chop, Budget shock, RBI policy, earnings beat. Honest fills, full Indian costs, process-grade scoring.
Preview · Curriculum
Free Sample Lesson
Read Stage 1 Volume 1 Chapter 2 in full — the Five Drivers of Price Movement. Standalone lesson; no sign-up required.