BAI calculator is a simple tool for estimating a person’s body fat percentage based on hip circumference and height.

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**What is BAI or Body Adiposity Index?**

Body Adiposity Index (BAI) is a percentage of body fat calculated by dividing a person’s hip circumference by their height. It is calculated by using a simple formula which requires you hip and height measurements. Based on a chart or formula, the resulting value is then used to estimate the person’s body fat percentage.

It should be noted that the BAI is only an estimate of body fat percentage and should not be used as a diagnostic tool. If you are concerned about your body fat percentage or overall health, consult with a healthcare professional for a thorough evaluation.

**How to Use BAI Calculator**

- Using this tool, you can easily calculate your body adiposity index.
- Simply choose your height from the dropdown menu and enter your waist circumference in centimetres.
- The calculator will calculate your BAI based on the values you enter.

**Formula to Calculate BAI**

Below formula can be used to calculate your body adiposity index.

When using the above BAI formula, remember to enter the hip circumference in centimetres and the height in metres. Even if you’ve taken measurements in different units, **convert **them to cm and m before using this formula.

**How Does Body Adiposity Index Work**

Body Adiposity Index (BAI) is a percentage of body fat calculated from a person’s hip circumference to height. It is manually calculated using the aforementioned formula.

If a person’s hip circumference is 102 centimetres and their height is 1.8 metres, their BAI is calculated as follows:

**BAI = {102/ (1.8 ^{1.5})} – 18 **

**BAI = 24.24%**

Once you have calculated your BAI, refer to below table to check your weight status.

**BAI Classification for Men**

Age | Underweight | Healthy | Overweight | Obese |

20 – 39 | less than 8% | 8% – 21% | greater than 21% | greater than 26% |

40 – 59 | less than 11% | 11% – 23% | greater than 23% | greater than 29% |

60 – 79 | less than 13% | 13% – 25% | greater than 25% | greater than 31% |

**BAI Classification for Women**

Age | Underweight | Healthy | Overweight | Obese |

20 – 39 | less than 21% | 21% – 33% | greater than 33% | greater than 39% |

40 – 59 | less than 23% | 23% – 35% | greater than 35% | greater than 41% |

60 – 79 | less than 25% | 25% – 38% | greater than 38% | greater than 43% |

Based on a above chart or formula, the resulting value is then used to estimate the person’s body fat percentage. BAI is regarded as a simple and dependable method of estimating body fat percentage, and it has been shown to be highly correlated with more complex and precise methods of measuring body fat.

**Body Adiposity Index Normal Range**

The normal range for Body Adiposity Index (BAI) varies by age, gender, and ethnicity. A lower BAI is generally associated with a lower body fat percentage, whereas a higher BAI is associated with a higher body fat percentage.

The following ranges are generally considered to be within the normal range for BAI in adults:

Women: 18-25%

Men: 8-20%