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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), in cooperation with the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), of the National Institutes of Health, as published in Clinical Guidelines on the Identification, Evaluation, and Treatment of Overweight and Obesity in Adults, 1998. 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 a general 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 middle-aged men and women. It may not be accurate for pregnant or nursing women, competitive athletes, and the elderly. It is also not accurate for children, because the normal BMI ranges for children are different, 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 (N/A), Bodybuilding/Athlete, Pregnant, Breastfeeding, or Under 18 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: 03/20/2015
Reviewed By: Steven Rapaport, MD, American Board of Internal Medicine Certified, Primary care physician, Meuchedet Health Plan, Tel Aviv, Israel. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.
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