Body Adiposity Index BAI Calculator | Body Adiposity Index Formula

Reviewed By : Rajashekhar Valipishetty

Last Updated : May 01, 2025

Body Adiposity Index Calculator is a free tool for the people who want to keep their bodies healthy and fit. By utilising BAI Calculator, you can know whether you are healthy, underweight, overweight, and obese. The only thing you have to do is just provide your height and hip circumference details and click the calculate button. Your body adiposity index percentage will get displayed.

Enter height

Enter your hip circumference

Body Adiposity Index (BAI) Calculator: Checking BAI is not very easy. Individuals who are willing to know their body adiposity index can make use of this online BAI Calculator. This tool is great for everyone who is concerned about their health and fitness. Here you can get the simple Body Adopisity Index formula and steps to calculate BAI easily.

What is the Body Adiposity Index?

When comparing their height to their hip sizes, the Body Adiposity Index or BAI determines how much of their body weight is made up of fat. BAI does not depend on body weight as an indicator, which differs from the more well-known body mass index. The BAI of adults of diverse ethnic backgrounds is roughly the same as the body fat percentage.

Body Adiposity Index Formula?

Here is a formula to calculate the percentage of body fat or Body Adiposity Index of a person.

BAI = (Circumference of Hip / (Height))^1.5 − 18

Here, the Circumference of the Hip is measured in cm & height is measured in m.

Body Adiposity Index Chart

Age	Men	Woman	Status
20 – 40	0-8%	0-21%	Underweight
	8-21%	21-33%	Healthy
	21-26%	33-39%	Overweight
	26%+	39%+	Obese
41 – 60	0-11%	0-23%	Underweight
	11-23%	23-35%	Healthy
	23-29%	35-41%	Overweight
	29%+	41%+	Obese
61 – 79	0-13%	0-25%	Underweight
	13-25%	25-38%	Healthy
	25-31%	38-43%	Overweight
	31%+	43%+	Obese

How to Calculate the Body Adiposity Index (BAI) Or How To Calculate Bai Manually?

The first and only thing we need here is the measuring tape and age of a person whose BAI we are calculating.
Take a measurement of the hip and height of the person.
Apply the formula for the above two measurements.
Use the body adiposity index chart to check the status of a person.

Solved Example to compute Body Adiposity Index (BAI)

Example:

What is BAI for a female aged 62 years with a height of 1.4 m & hip measurement is 104 cm?

Solution:

First let us look at the formula for body adiposity index,

BAI = (Circumference of Hip / (Height))^1.5 – 18

Here, hip measurement is 104cm & height is 1.4m.

Hence, BAI = 44.78% body fat

So, according to the chart of BAI, we can say that this person belongs to the obese category.

Begin by using a couple more calculators, then go to onlinecalculator.guide to converse in a range of units and sizes.

FAQs on BAI Calculator | Body Adiposity Index Calculation

1. What is my BAI?

The BAI stands for Body Adiposity Index. It is usually used to determine the total body mass that is made only of fat tissues. While calculating BAI the comparison of the person's height to the hips size is done.

2. What percentage is a commonly suggested optimum regarding body adiposity for females?

10–13% is a commonly suggested optimum regarding body adiposity for females, also more than 32% classifies as obesity.

3. Is body adiposity index accurate?

The body adiposity index OR body adipose index is not an accurate measure of adiposity as is BMI, waist circumference or hip circumference.

4. What does adiposity mean?

Adiposity can be defined as the condition of having excess deposition of the fatty tissues in the body. It is also known as obesity.