Body mass index (BMI) is a measure of body fat based on height and weight that applies to adult men and women. It is widely used as a common indicator of whether a person has a healthy body weight for their height. The value obtained from the calculation of BMI is used to categorize whether a person is underweight, normal weight, overweight, or obese depending on the range in which it falls.
The formula used for calculating the BMI index in (kg/m2) is given below:
BMI(kg/m2) = mass(kg) / height2(m)
Alternatively, it can also be expressed as:
BMI(kg/m2) = mass(lb) / height2(in) × 703
|BMI Range||BMI Category||BMI Sub-Category|
|< 16||Underweight||Severe Thinness|
|16 - 17||Moderate Thinness|
|17 - 18.5||Mild Thinness|
|18.5 - 25||Normal||Normal|
|25 - 30||Overweight||Overweight|
|30 - 35||Obese||Obese Class I|
|35 - 40||Obese Class II|
|> 40||Obese Class III|
BMI chart for adults
This is a graph of BMI categories Based on the World Health Organization data, . The dashed lines represent subdivisions within a major categorization.