Free tools

Free trading calculators

Four calculators every disciplined trader needs. No sign-up, no email, no limits — they run entirely in your browser.

Why calculate before, journal after

A calculator tells you what a trade should risk. A journal tells you what you actually did. The gap between the two is where most accounts are lost: a position sized 3x too big, a stop moved mid-trade, a target cut at 0.6R because of nerves.

Simple Trading Journal closes that gap. Set a default risk % per trading account and the numbers from these calculators pre-fill automatically when you log a trade — then analytics shows your real R-multiple, win rate and profit factor per instrument, strategy and emotional state.

Stop guessing. Start journaling.

Log a trade from a chart screenshot in seconds. Free plan forever, Pro from €5/month.