This BAI and BMI calculator estimates both your body’s adiposity index and body mass index level and display as well the range category you belong to: underweight, healthy, overweight or obese. There is in depth information about the two formulas employed right after the tool.
How does this BAI and BMI calculator work?
This health tool aims to help you discover two figures that both relate to your body status. One is the traditional BMI range and the other one is the Body Adiposity Index in such a way to let you compare the two results.
The algorithm behind this BAI and BMI calculator uses the equations explained in the next rows, while it takes account of the gender, age range, weight, height and hip circumference:
BAI formula that considers only the hip circumference and height:
BMI formula that requires the height and weight to be given:
Please note that both measurement units English and Metric are supported and that apart from the two health figures, this calculator checks as well the BAI classification (which is gender and age specific) and the BMI range.
BAI classification
|
Female Body Adiposity Index (BAI) Classification |
|||
|
Age range |
[BAI_minimum |
BAI_maximum) |
Status |
|
20 - 39 |
0% |
21% |
Underweight |
|
20 - 39 |
21% |
33% |
Healthy |
|
20 - 39 |
33% |
39% |
Overweight |
|
20 - 39 |
Over 39% |
Obese |
|
|
40 - 59 |
0% |
23% |
Underweight |
|
40 - 59 |
23% |
35 |
Healthy |
|
40 - 59 |
35 |
41% |
Overweight |
|
40 - 59 |
Over 41% |
Obese |
|
|
60 - 79 |
0% |
25% |
Underweight |
|
60 - 79 |
25% |
38% |
Healthy |
|
60 - 79 |
38% |
43% |
Overweight |
|
60 - 79 |
Over 43% |
Obese |
|
|
Male Body Adiposity Index (BAI) Classification |
|||
|
Age range |
[BAI_minimum |
BAI_maximum) |
Status |
|
20 - 39 |
0% |
8% |
Underweight |
|
20 - 39 |
8% |
21% |
Healthy |
|
20 - 39 |
21% |
26% |
Overweight |
|
20 - 39 |
Over 26% |
Obese |
|
|
40 - 59 |
0% |
11% |
Underweight |
|
40 - 59 |
11% |
23 |
Healthy |
|
40 - 59 |
23 |
29% |
Overweight |
|
40 - 59 |
Over 29% |
Obese |
|
|
60 - 79 |
0% |
13% |
Underweight |
|
60 - 79 |
13% |
25% |
Healthy |
|
60 - 79 |
25% |
31% |
Overweight |
|
60 - 79 |
Over 31% |
Obese |
|
BMI ranges
| BMI Ranges - no gender specific (in kg/m2) | ||
| [BMI_minimum | BMI_maximum) | Status |
| 0 | 15 | Very severely underweight |
| 15 | 16 | Severely underweight |
| 16 | 18.5 | Underweight |
| 18.5 | 25 | Normal (healthy weight) |
| 25 | 30 | Overweight |
| 30 | 35 | Obese Class I (Moderately obese) |
| 35 | 40 | Obese Class II (Severely obese) |
| over 40 | Obese Class III (Very severely obese) | |
Example of a BAI & BMI calculation
Let’s figure out the two figures for a male aged between 20 - 39 years having a total weight of 270 lbs, a height of 6 feet and 4 inches and a hip circumference of 35 inches:
■ His Body Adiposity Index (BAI) percentage is 15.15%. Considering this BAI percentage, the gender and the age range his body is Healthy.
■ His Body Mass Index (BMI) is 32.87kg/m2. Based on the BMI ranges his body is considered to be Obese Class I (Moderately obese).
References
1) BMI Classification. (2006) Global Database on Body Mass Index. World Health Organization.
2) Gadzik J. (2006) How much should I weigh? -- Quetelet's equation, upper weight limits, and BMI prime. Conn Med; 70(2):81-8.
05 May, 2015