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The BAI calculator serves as a valuable tool for maintaining overall health and fitness by determining your Body Adiposity Index. In this article, we’ll delve into what BAI is, the process of calculating body fat percentage, and the corresponding classifications ranging from underweight to obese.

It’s crucial to note that while our Omni Calculators strive for precision, they can’t replace a professional doctor’s evaluation. All information provided is for informational purposes and not a substitute for medical consultation; always consult with a healthcare professional regarding your results.

Understanding BAI:

BAI, or Body Adiposity Index, gauges total body mass composed exclusively of fat tissues. Unlike BMI, BAI doesn’t use body weight; instead, it relies on a comparison of height to hip size. Studies indicate BAI’s similarity to body fat percentage across various ethnicities.

Research suggests that BAI calculations align closely with other methods such as BMI, waist, or hip circumference-based approaches. However, these methods, including BAI, offer approximate rather than precise body fat measurements. They serve as basic tests due to their simplicity and cost-effectiveness.

BAI Calculator:

Our Body Adiposity Calculator provides your body fat percentage using the formula:

BAI=(height1.5hip circumference​)−18

Enter your height (in cm, m, in, ft) and hip circumference (in cm or in) to obtain your body adiposity index percentage.

Calculating Body Fat Percentage:

Let’s simplify the process with an example. For a 42-year-old man:

height=180 cm, hip circumference=102 cmheight=180cm,hip circumference=102cm

The result:

BAI=24.2%

Refer to the classification tables based on age and gender to interpret your BAI result.

Body Adiposity Index Classification:

Classifications, proposed by Gallagher, Heymsfield et al., vary with age and gender:

For Women:

  • Age 20-39: Less than 21% (Underweight), 21-33% (Healthy), Greater than 33% (Overweight), Greater than 39% (Obese)
  • Age 40-59: Less than 23%, 23-35%, Greater than 35%, Greater than 41%
  • Age 60-79: Less than 25%, 25-38%, Greater than 38%, Greater than 43%

For Men:

  • Age 20-39: Less than 8%, 8-21%, Greater than 21%, Greater than 26%
  • Age 40-59: Less than 11%, 11-23%, Greater than 23%, Greater than 29%
  • Age 60-79: Less than 13%, 13-25%, Greater than 25%, Greater than 31%