Ponderal Index Calculator
A height-corrected leanness index.
The ponderal index works better than BMI at the extremes of height.
The math behind it
PI = weight (kg) ÷ height (m)³. Normal is roughly 11–15 kg/m³.
Worked example
70 kg, 175 cm → 13.06.
FAQ
Vs BMI?
BMI divides by height²; PI by height³, scaling better for very tall/short people.