Body Mass Index: BMI
The best known measurement for determining obesity is the body mass index (BMI). It evaluates a person's body weight in relation to his or her height.
Body mass index (BMI) = body weight (kg) : (body height in m) ²
Example: You are 1.70 meters tall (5'6") and weigh 65 kilograms (143 pounds).
Your BMI is: 65 : (1.7 x 1.7) = 22.5
Classification and evaluation of weight groups
|Classification||BMI (kg/m²)||Risk of disease|
|Ideal weight||18.5 – 25.0||average|
|Overweight||25.1 – 29.9||heightened|
|Obesity Grade I||30.0 – 34.9||high|
|Obesity Grade II||35.0 – 39.9||very high|
|Obesity Grade III||above 40.0||extremely high|
Please note that very athletic people can have a BMI of around 26 due to increased muscle mass. In this case, there is no excess weight.