BAI Calculator - Body Adiposity Index

Your details

Measure around the fullest part of the hips and buttocks, with the tape parallel to the floor. Use the side profile to find the widest point.
cm
Stand straight without shoes. Measure to the nearest 0.5 cm or 0.25 inch.
cm
Sex at birth. BAI healthy ranges differ significantly between males and females.
Age in years (20-79). The healthy BAI range shifts upward with age.
years
Body Adiposity IndexOverweight
24.3%

Estimated body fat percentage from hip circumference and height

CategoryOverweight
Healthy BAI range8 to 21%
Distance from healthy range3.3% above healthy
24.3 %
Underweight<8Healthy (men)8-21Overweight (men)21-26Healthy (women)26-33Overweight (women)33-39Obese39+

Your BAI is 24.3%, classified as overweight for your sex and age.

  • For a male aged 20-39, a healthy BAI is 8 to 21%. Your result is 24.3%.
  • Your estimated body fat is above the healthy threshold. Reducing hip circumference through regular cardiovascular exercise can help.
  • BAI does not require body weight, making it useful in field settings, but research shows it is not more accurate than BMI or waist circumference for predicting metabolic risk.
  • For a fuller picture, combine BAI with waist-to-height ratio and, where possible, a DXA or hydrostatic weighing measurement.

Next stepDiscuss your result with a doctor or registered dietitian before making changes to your diet or exercise routine.

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