Body Mass Index (BMI) Quick Help 1 Enter your data: Body Weight lb kg Body Height 4.0 5.0 6.0 7.0  Feet     0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5  Inches Personalize for Printing (opcional) Name 2 Your Results: Body Mass Index (BMI): kg/m2 BMI class:   BMI Equation BMI is a measure of body fat based on height and weight that applies to adult men and women.   The Equation is: BMI = Body Mass Index (kg/m2) Wt = Body Weight (kg) Ht = Body Height (meters) Also: BMI = (weight, lb * 704) / (height, in)^2 download this application Free BMIcalx™ The BMI, which describes relative weight for height, is significantly correlated with total body fat content. The BMI should be used to assess overweight and obesity and to monitor changes in body weight. In addition, measurements of body weight alone can be used to determine efficacy of weight loss therapy. BMI is calculated as weight (kg)/height squared (m2). To estimate BMI using pounds and inches, use: [weight (pounds)/height (inches)2] x 703. CLASSIFICATION OF OVERWEIGHT AND OBESITY BY BMI Obesity Class BMI (kg/m2) Underweight <18.5 Normal 18.5 – 24.9 Overweight 25.0 – 29.9 Obesity I 30.0 – 34.9 II 35.0 – 39.9 Extreme Obesity III 40 Table ES-2 Clinical Guidelines on the Identification, Evaluation, and Treatment of Overweight and Obesity in Adults Executive Summary NHLBI Obesity Education Initiative National Institutes of Health Health 101™ "Health Calculators for Fitness & Wellness™". The most innovative Health Education And Risk Assessment Tool, featuring more than 40 Health calculators, Health information, Web resources, Guidelines, and integrated panels for comprehensive Body Weight and Cardiovascular Risk Assessments. Developed by physicians, designed for everyone. Learn more.