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Body Adiposity Index

BAI from hip circumference and height

Body Adiposity Index (BAI)

Hip Circumference (cm)
Height (cm)

The Body Adiposity Index (BAI) estimates body fat % from hip circumference and height without needing weight. Proposed 2011 as an alternative to BMI.

  1. 1BAI = Hip (cm) / Height (m)^1.5 − 18
  2. 2Healthy male: 8–20%; Female: 21–33%
  3. 3Validated against DXA scan measurements
  4. 4No weight scale needed — useful in field settings
Hip 100cm, height 1.75m=BAI = 100/1.75^1.5 − 18 = 25.3%
CategoryMenWomen
Athletes6–13%14–20%
Fitness14–17%21–24%
Average18–24%25–31%
Obese≥25%≥32%
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