BAI and BMI Calculator

Body Adiposity Index (BAI) & Body Mass Index (BMI)

Body Adiposity Index & Body Mass Index comparison calculator help us calculate fat percentage and body mass in human body. The body adiposity index (BAI) estimates the amount of body fat (BF) in humans. Preliminary investigations shows that body adiposity index is a better marker of body fat than body mass index.

Health Risks of Overweight & Obesity

Obesity is recognised as one of the most important risk factors for diabetes type 2. Body Adiposity Index has proven to be a useful tool in estimating the risk. Study found that the elevation of a single unit of BAI represented an increase of 8.4% in the risk of a patient developing type 2 diabetes mellitus.


  • BAI = ( HC / (HM ) * 1.5 ) – 18
  • BMI = WK / HM2


  • BAI = Body Adiposity Index
  • HC = Hip Circumference in Centimeter
  • HC = Hip Circumference in Centimeter
  • BMI = Body Mass Index
  • WK = Weight in Kilogram
  • HM = Height in Meter

BMI Classification TABLE

Less than 18.5Underweight
From 18.5 to 25Normal weight
From 25 to 30Overweight
Greater than 30Obese weight

BAI Classification FOR MEN

Age (years)UnderweightHealthyOverweightObese
20-39Less tahn 8%8% to 21%21% to 26%Greater than 26%
40-59Less than 11%11% to 23%23% to 29%Greater than 29%
60-79Less than 13%13% to 25%25% to 31%Greater than 31%

BAI Classification FOR WOMAN

Age (years)UnderweightHealthyOverweightObese
20-39Less tahn 21%21% to 33%33% to 39%Greater than 39%
40-59Less than 23%23% to 35%25% to 41%Greater than 41%
60-79Less than 25%25% to 38%38% to 43%Greater than 43%



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