BAI Calculator - Body Adiposity Index
The BAI calculator is a tool for anyone who wants to keep their body healthy and fit. With its help, you will check your body adiposity index. Read the supporting article to study what BAI is, how to calculate body fat percentage, and see the ranges for underweight, healthy, overweight, and obese.
We try our best to make our s as precise and reliable as possible. However, this tool can never replace a professional doctor's assessment. All information on this website is for informational purposes only and is not intended to serve as a substitute for medical consultation. Always consult your results with a health care provider.
What is BAI?
BAI is an abbreviation of body adiposity index. This parameter defines your total body mass, which is made only of fat tissues. The calculations are based on a comparison of the person's height to hip size. Unlike the body mass index (BMI), the BAI method doesn't use body weight for estimations. Several studies on population show that the BAI is approximately equal to the body fat percentage for adult men and women of differing ethnicities.
According to the researchers' scientific study, the BAI methods of adiposity calculations have similar accuracy to BMI, waist, or hip circumference-based approaches. Learn more about this in our waist to hip ratio calculator. However, none of these techniques (including BAI) offer precise measures of body fat. They are used mainly for basic testing because they are easy to perform and inexpensive.
BAI calculator
The body adiposity calculator provides you with the percentage value of body fat, covered in our army body fat calculator. For calculations, it uses the formula (for both males and females):
BAI = (hip circumference/(height)^1.5) - 18
where: hip circumference is in centimeters and height is in meters.
Calculating the body adiposity index, divide your hip circumference (in cm) by your height (in m) raised to the power of 1.5, and then subtract 18.
What is essential the measurements of hip circumference should be made by placing a tape measure around the hips so that it goes through the rise of the buttocks (viewed from the side).
Calculate the body fat percentage
Using the BAI calculator is a piece of cake. Take a look:
- Fill in your height (you can use different units like cm, m, in, ft)
- Enter your hip circumference (in cm or in)
- Check the percentage value of the body adiposity index in the last field.
Let's do an example calculation for a man who is 42 years old:
height = 180 cm
hip circumference = 102 cm
The result:
BAI = 24.2%
Now, find this value in the table below - it seems our friend is slightly overweight.
Healthy body fat
Once you know your body adiposity index, check the tables below to interpret the result. BAI classification depends on age and gender were proposed by Gallagher, Heymsfield et al.:
- Body adiposity index classification for woman
Age (years) | Underweight | Healthy | Overweight | Obese |
|---|---|---|---|---|
20 - 39 | Less than 21% | 21% to 33% | Greater than 33% | Greater than 39% |
40 - 59 | Less than 23% | 23% to 35% | Greater than 35% | Greater than 41% |
60 - 79 | Less than 25% | 25% to 38% | Greater than 38% | Greater than 43% |
- Body adiposity index classification for man
Age (years) | Underweight | Healthy | Overweight | Obese |
|---|---|---|---|---|
20 - 39 | Less than 8% | 8% to 21% | Greater than 21% | Greater than 26% |
40 - 59 | Less than 11% | 11% to 23% | Greater than 23% | Greater than 29% |
60 - 79 | Less than 13% | 13% to 25% | Greater than 25% | Greater than 31% |
Check the Harris-Benedict calculator – it will tell you how many calories your body burns a day, as a basal metabolic rate.
Remember that although the BAI index may be a promising alternative to the BMI, it also has many drawbacks. It shouldn't be interpreted separately from other body measurements and overall health assessments by a medical professional.
FAQs
- What does the BAI Calculator do?
- Are you curious how much fat your body contain? Or maybe you are concerned that you have too much of it? Find your healthy body fat with the BAI calculator. Use the calculator above for instant results in your browser.
- Is the BAI Calculator free to use?
- Yes. All Try To Calculator tools are free and do not require an account.
- Are my inputs stored or sent to a server?
- No. Calculations run locally in your browser. We do not collect the numbers you enter or the results shown.
- Can I use the BAI Calculator for professional decisions?
- This tool is for education and quick estimates. For medical, legal, tax, or financial decisions, verify results with a qualified professional.
- Where can I find related calculators?
- Browse more Health tools on Try To Calculator at /health, or use the related calculators section on this page.
Based on 2 sources
- A better index of body adiposity — Bergman, R. N.; Stefanovski, D.; Buchanan, T. A.; Sumner, A. E.; Reynolds, J. C.; Sebring, N. G.; Xiang, A. H.; Watanabe, R. M.
- The body adiposity index (hip circumference ÷ height(1.5)) is not a more accurate measure of adiposity than is BMI, waist circumference, or hip circumference. — Freedman, D. S.; Thornton, J. C.; Pi-Sunyer, F. X.; Heymsfield, S. B.; Wang, J.; Pierson, R. N.; Jr, Blanck, H. M.; Gallagher, D.
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