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Body Metrics

Body Adiposity Index Calculator

Body fat percentage estimation without requiring body weight

Input Parameters
Real-time calculation updates dynamically as you adjust inputs. Values remain strictly local on your device.
Body Adiposity Index (BAI)Overweight
23.5%

Estimated percentage of body fat without measuring body weight

Clinical Responsibility Note: This calculation provides statistical estimations for informational and educational purposes only. It is not an individualized medical diagnosis or clinical prescription.

Mathematical Formula & Scientific Methodology

Formula: Bergman Body Adiposity Index (2011)

BAI = [Hip Circumference (cm) / (Height in m)^1.5] - 18

Developed by Dr. Richard Bergman to estimate percent adiposity independently of body mass.

Model Assumptions

  • Adults aged 18+

Variables & Standard Units

SymbolPhysiological MeaningUnit
HipHip circumference at maximum posterior extensioncm
HeightStature in metersm

Scientific Limitations

  • Tends to overestimate body fat in lean individuals and underestimate in very high adiposity

Peer-Reviewed Scientific Citations

A better index of body adiposity (2011)

Bergman RN, Stefanovski D, Buchanan TA, et al. (2011) — Obesity, 19(5), 1083-1089

Key Finding: BAI = (Hip circumference in cm / ((Height in m)^1.5)) - 18. Evaluates adiposity without requiring scale weight.

Frequently Asked Questions

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