Free tools for traders and investors

Make the calculation before you take the risk.

Practical calculators for position sizing, stop losses, returns, compounding and long-term investing. Every formula is visible, every tool works without an account, and your inputs stay in your browser.

Risk first

Protect the account before planning the profit.

Position size, stop distance and drawdown recovery are connected. A strong process decides the acceptable loss first, then chooses a quantity that respects it.

Open risk calculator
Why TradeCalcZen

Useful enough to revisit, clear enough to verify

Financial calculators should do more than display a final number. Each TradeCalcZen page combines a usable calculator, formula, worked assumptions, risk explanation and related tools. This helps traders move from calculation to understanding without unnecessary sign-ups or distracting pop-ups.

Designed for India, useful internationally

Indian currency formatting is the default, while USD, EUR and GBP are available where appropriate. Broker charges and tax rules change, so regulated or broker-specific values are never presented as permanent facts without review.