Body mass index (BMI) is a measure of body fat based on height and weight that applies to both adult men and women. If you are concerned about your BMI number, please contact your doctor.

BMI Categories:
Underweight = <18.5
Normal weight = 18.5-24.9
Overweight = 25-29.9
Obese = 30-34.9
Severly Obese = 35 – 39.9
Morbidly Obese = 40+

• Overview
• Calculate BMI
• Recommended Links

Severe obesity is a chronic disease that affects millions of Americans. Typically, severe obesity is defined as being greater than 100 pounds above your ideal body weight or having a body mass index (BMI) over 35 (calculate your BMI). For the vast majority of severely obese people, diets and medications only help with temporary weight loss. Patients usually regain all and sometimes additional weight. Unsupervised medical treatment of this chronic disease is difficult and often unsuccessful.