Children's Health and Wellness

Calculating BMI

Here's the math behind the online calculators for body mass index (BMI). To find your BMI, first multiply your height in inches by your height in inches (you are squaring the number). Then divide your weight in pounds by that square number. Multiply that result by 703. The answer is your BMI. A healthy BMI falls between 18.5 and 24.9. Overweight is 25.0 to 29.9. Obese is 30.0 and greater.

Print Source: National Heart, Lung and Blood Institute
Online Source: National Heart, Lung and Blood Institutehttp://www.nhlbisupport.com/bmi/
Online Editor: Sinovic, Dianna
Online Medical Reviewer: Godsey, Cynthia M.S., M.S.N., APRN
Online Medical Reviewer: Lambert, J.G. M.D.
Date Last Reviewed: 3/22/2005
Copyright Health Ink & Vitality Communications