Normal adult range is approximately 11 to 14 kg/m³
Mathematical Formula & Scientific Methodology
Formula: Rohrer Ponderal Corpulence Index
PI = weight (kg) / [height (m)]³Because human bodies exist in three dimensions, scaling mass by height cubed yields a dimensionally consistent volumetric density ratio.
Model Assumptions
- Dimensional scaling theory holds across adult heights
Variables & Standard Units
| Symbol | Physiological Meaning | Unit |
|---|---|---|
| weight | Body mass | kg |
| height | Height | m |
Scientific Limitations
- Less widespread epidemiological risk data compared to BMI
Peer-Reviewed Scientific Citations
Obesity: preventing and managing the global epidemic. Report of a WHO consultation (2000)
World Health Organization (2000) — WHO Technical Report Series, 894, 1-253
Key Finding: Standard international adult BMI classifications: Underweight (<18.5), Normal (18.5-24.9), Overweight (25.0-29.9), Obesity Class I (30.0-34.9), Class II (35.0-39.9), Class III (>=40.0).
Frequently Asked Questions
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