Free trading calculators
The arithmetic every trade needs before it is placed — sizing, ratio and liquidation level. Everything runs in this page, there is nothing to sign up for, and none of it sends your numbers anywhere.

The part a calculator cannot do
These pages work on numbers you already decided. Deciding them means reading the chart — Chart AI takes a photo of any chart and talks through the trend, the levels, the volatility and the volume on it, then keeps the analysis in a history you can look back at.