Your BMI is unknown
You must fill in all fields in order to calculate your BMI
1. Find your waist
With your finger, feel the bottom of your ribs and the top of your hipbones; your waist lays between these 2 points, normally where the bellybutton is.
2. Measure your waist
Wrap the measuring tape around your bare skin or a light t-shirt.
Make sure the tape is snug, but does not compress your skin.
Relax, exhale and measure your waist.