Body Mass Index Calculator

Answering this question may give you the courage you need to take the first step. Below are tools you can use to determine if you are morbidly obese and potentially a candidate for weight loss surgery.

There are several medically accepted criteria for defining morbid obesity. You are likely morbidly obese if you are: more than 100 lbs. over your ideal body weight, or  have a Body Mass Index (BMI) of over 40, or have a BMI of over 35 and are experiencing severe negative health effects, such as high blood pressure or diabetes, related to being severely overweight.

BMI Category Health Risk based
solely on BMI
Risk adjusted or presence of
Comorbid Conditions and/or Risk Factors
< 25 Minimal Low
25 - < 27 Low Moderate
27 - < 30 Moderate High
30 - < 35 High Very High
35 - < 40 Very High Extremely High
> 40 Extremely High Extremely High


Select Weight Reduction Treatment Option(s):

Based on health risk, what treatments are available for you?

Health Risk: Treatment Option(s) Available:
Minimal & Low
  • Healthful eating and/or moderate deficit diet
  • Increased physical activity
  • Lifestyle change strategies
  • All the above plus low calorie diet
High & Very High
  • All the above plus pharmacotherapy
  • All the above plus low calorie diet


Extremely High
  • All the above plus surgical intervention