Body Mass Index
 

(Weight / 2.2) / ((Height x 2.54 / 100) x (Height x 2.54 / 100))

 
Height (inches)
Weight (pounds)
 

Body-mass index, or BMI, is used as one measure of obesity or state of being overweight. BMI is used as a baseline and, then subsequently, to measure the effectiveness of a weight loss and/or health regimen implemented in cooperation with an individual's physician and other health care providers.

The National Institutes of Health recommends four BMI Categories:

  • Underweight = <18.5
  • Normal weight = 18.5-24.9
  • Overweight = 25-29.9
  • Obesity = BMI of 30 or greater

References:

"Clinical Guidelines on the Identification, Evaluation, and Treatment of Overweight and Obesity in Adults," National Heart, Lung, and Blood Institute, in cooperation with the National Institutes of Health.

"Calculate Your Body Mass Index," National Heart, Lung, and Blood Institute, in cooperation with the National Institutes of Health.

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