Body mass index
Mass over height squared. A population screening tool, not a diagnosis.
23.7kg/m²
NORMAL
Normal range for this height is 59–79 kg.
Inputs
Body masskg
Heightcm
WHO classification — adults
Under
Normal
Over
Obese I
Obese II
Obese III
1223.745
Derived
CategoryNormal
BMI prime0.95
Ponderal index13.3kg/m³
To mid-normal−6.2kg
Notes
01BMI cannot tell muscle from fat, and shifts with age and ancestry. Under 20, percentiles apply.
02The ponderal index divides by height cubed, which distorts less at the extremes of stature.