BMI Classification Chart

A visual and tabular guide to understanding Body Mass Index across various demographics.

BMI Range Classification
Less than 18.5 Underweight
18.5 - 24.9 Normal Weight
25.0 - 29.9 Overweight
30.0 - 34.9 Obesity Class I
35.0 - 39.9 Obesity Class II
40.0 or more Obesity Class III (Severe)

Understanding the BMI Scale

The Body Mass Index (BMI) scale is used by healthcare professionals globally as a quick screening tool for potential health risks associated with weight. However, it is essential to understand that BMI is an indirect measure of body fat.

Limitations for Athletes

Individuals with high Muscle Mass (such as powerlifters or bodybuilders) will often fall into the "Overweight" or "Obese" categories. This is because muscle is significantly denser than fat. In these cases, Body Fat Percentage is a much more accurate metric of health than BMI.