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Wellness Tools

Body Mass Index Calculator

Current weight:

Current height:


Note : The BMI ranges used in this calculator are from the BMI guidelines of the National Heart, Lung, and Blood Institute (NHLBI) Information in this tool is also based on 2013 AHA/ACC/TOS Guideline for the Management of Overweight and Obesity in Adults: A Report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines and The Obesity Society. J Am Coll Cardiol. 2014;63(25_PA):2985-3023.

How to Use

The Body Mass Index Calculator can give you an idea of whether your body weight is right for your height. By entering your height and weight, you can check if you are underweight, overweight, or just right.

This BMI Calculator is for men and women age 20 or older. It may not be accurate for pregnant or nursing women, competitive athletes, and older adults. It is also not accurate for children. The normal BMI ranges for children are different than for adults, and vary according to age and gender.

If you have used other A.D.A.M. tools, some of this information may be filled in for you.

  • Enter your weight in the box provided.
  • If you entered your weight in kilograms, select Kilograms from the drop-down list.
  • Enter your height.
  • Select Feet and Inches or Meters and Centimeters from the drop-down list.
  • Select your status: None of the below (N/A), Bodybuilding/Athlete, Pregnant, Breastfeeding, or Under 20 years old.
  • Click Submit/Calculate.
  • To enter new height and weight measurements, click Try Again.
More About This Tool

BMI stands for "body mass index." This number is based on your weight in relation to your height. BMI is a good indicator of a healthy weight for adult men and women, no matter your body frame size. If you have a BMI 25 or higher, you may have increased health risks. Could your weight be increasing your health risks? Use our BMI Calculator to find out.

Review Date: 1/30/2021
Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
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