Free trading calculators
Turn account size, risk % and stop distance into an exact position size — before you click buy.
Enter entry, stop and target to get your RR ratio, R-multiple and the price levels for TP1/TP2/TP3.
See the win rate a given RR needs to break even — and the expectancy of your current numbers.
Work out your daily and max drawdown limits, and how many losing trades you can survive.
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.

