What is BAI and how does it differ from BMI?

BAI uses hip circumference and height rather than weight, making it potentially more reflective of actual adiposity. It directly estimates body fat percentage without a scale.

BAI has shown moderate accuracy against DEXA in some populations but performs inconsistently across ethnicities. It is useful as a supplementary index alongside other measures.

What BAI values indicate excess fat?

For men: 8-19% is low, 20-25% acceptable, 26-37% obese. For women: 21-32% is acceptable, above 38% is obese. These ranges are age-dependent.

Body Adiposity Index (BAI) Calculator

Calculate Body Adiposity Index: BAI = (hip_cm / height_m^1.5) - 18. Provides a direct estimate of body fat % without body weight.

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Distance covered in 12 minutes (meters)

🏅 Sports Note: These calculators provide estimates based on population data and validated formulas. Individual results vary by physiology, training level, and testing conditions. Consult a qualified coach or sports scientist for personalized guidance.

How to Use

Enter the values for the scenario you are assessing. Calculate Body Adiposity Index: BAI = (hip_cm / height_m^1.5) - 18. Provides a direct estimate of body fat % without body weight. Use the body adiposity index result to inform your calculation.

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Body Adiposity Index (BAI) Calculator

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Frequently Asked Questions

What is BAI and how does it differ from BMI?

How accurate is BAI?

What BAI values indicate excess fat?