Things You'll Need:
- Calculator
- Measuring tape
- Weight scale
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Step 1
Learn the concept of BMI or Body Mass Index. BMI is the most widely accepted assessment of obesity.
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Step 2
Calculate your BMI by using one of the following formulas:
BMI = (Weight in pounds) / [(height in inches) x (height in inches)] x 703
BMI = weight in kilograms / (height in meters) x (height in meters) -
Step 3
Know that BMI is measured in kg/m².
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Step 4
Interpret your BMI as follows:
If your BMI is less than 18.5 kg/m² you are underweight.
If your BMI is between 18.5 kg/m² and 24.9 kg/m² you are normal.
If your BMI is between 25.0 kg/m² and 29.9 kg/m² you are Overweight.
If your BMI is above 30.0 kg/m² you are obese. -
Step 5
Classify your obesity as follows:
You are class I obese if your BMI is between 30.0 kg/m² and 34.9 kg/m²
You are class II obese if your BMI is between 35.0 kg/m² and 39.9 kg/m²
You are class III obese if your BMI is above 40.0 kg/m²












Comments
bushbash said
on 9/5/2009 excellent and easy to understand...thanks
shahbasharat said
on 7/17/2009 reply for 'RFerriANP': diagnosing obesity by 'honest look in the mirror' is an unprofessional approach. modern medicine is evidence based and evidence must be objective not just subjective. example: there is a psychological disorder called 'Body dysmorphic disorder' where people have a firm belief that they are obese or underweight. unless you have an objective tool to assess their situation you as a clinician will not only frustrate the patient but also yourself.
shahbasharat said
on 7/17/2009 Like any other medical test 'BMI' also has false positive results. BMI could falsely tell you that you are 'fat' especially if you are muscular and athletic. but to detect the false positivity of BMI all you need is a little bit of common sense. Also, you should know that the BMI classification of obesity has been issued by the National Heart, Lung, and Blood Institute and not by any commercial insurance company. .
RFerriANP said
on 7/12/2009 Hold on there. This information in this article in CLINCIALLY flawed and can lead to a tremendous amount of inappropriate interpretation. The BMI scale that is most commonly used to "determine" obesity and such is based on health/life insurance data and NOT medical data. If someone were to look at just my height and weight I would end up in the overweight (or "fat") column by those insurance standards instead of being very healthy, muscular with a very low and healthy body fat index. Telling readers that a simple BMI chart informs them if they are obese, fat, overweight, or whatever is misleading. Maybe an honest look in a mirror would be more helpful?
lilolladystuff said
on 7/12/2009
Thanks for the info.