1. Sports
Send to a Friend via Email
You can opt-out at any time. Please refer to our privacy policy for contact information.

What Does Body Mass Index Mean?


Caucasian woman's feet standing on scale
Blend Images/John Fedele/Brand X Pictures/Getty Images

Definition: Body Mass Index (BMI) is a number calculated from a person’s weight and height information. BMI is equal to a person’s weight in kilograms divided by the height in meters squared or BMI=kg/m2. The resulting number provides a dependable estimate of body fat levels for most people and is used to identify weight categories that could result in health problems. Body mass index is the preferred method of measurement for many physicians and researchers who study obesity.

Also Known As: BMI

©2014 About.com. All rights reserved.