Tools
Four small calculators that run in your own browser.
I built the frontend for the Fortis fitness app while I was at meew, and these four numbers are the ones an app like that works out over and over. I wanted them somewhere I could look them up myself. Nothing is sent anywhere and nothing is stored. It is all worked out in your own browser as you type.
These are estimates, not health advice. If it matters, ask your doctor.
BMI
Weight divided by height squared. It says something about weight, but it cannot tell muscle from fat, so read it next to the body fat estimate.