The Medical Cost Reference Guide

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Body Mass Index (BMI) Calculator

Body mass index (BMI) is a measure of body fat based on height and weight that applies to both adult men and women. BMI is an index of a person's weight in relation to height, not body type such as bone or muscle mass or individual factors such as pregnancy. Always talk with your doctor with any questions you have about your BMI.

To calculate your BMI, enter your height and weight and click Submit.

BMI Calculator for AdultsRESULTS
  1. Height:

  2. Weight:
    (Note: 8 ounces = 0.5 pounds)


Note: Privacy assurance: Information that you enter won't be saved or sent to any website.

BMI Indicators
Underweight = <18.5
Normal weight = 18.5 - 24.9
Overweight = 25.0 - 29.9
Obesity = BMI of 30 or greater

For more information about BMI and frequently asked questions, please go to the Centers of Disease Control website.

Disclaimer: All information given by the BMI and Ideal Body Weight Calculator is for general interest only. Accuracy of results and predictability from results vary according to many factors other than those referenced here. This information is not medical advice and is not intended to be used in place of medical advice given by a doctor or other qualified health professional during a consultation. To find out what this information means for you, call your provider. If you use this information for any purpose, it is with your full understanding that you are solely responsible for that use and that neither Blue Cross and Blue Shield Association nor any of its Member Plans are responsible for any damages, losses, or non-covered charges that may result from such use.