Free calculators

Client-side math — nothing you type here leaves your browser

Two small tools we use constantly. They compute arithmetic, not advice: position sizing keeps a losing trade survivable, and the breakeven win rate shows what a risk:reward ratio actually demands — before costs, which only make it stricter.

Note: breakeven win rate ignores fees, slippage and funding — real breakeven is higher. That asymmetry is exactly why we only quote net results.