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Body Mass Index Calculator

Fill out the following form and click "Calculate" to find your BMI value. Compare your BMI to the chart below.

Height:  feet
and  inch(es)
Weight:  pounds
(Note: 8 ounces = 0.5 pounds)

Your BMI:




BMI Weight Status
Below 18.5 Underweight
18.5 – 24.9 Normal
25.0 – 29.9 Overweight
30.0 and Above Obese



What Is BMI?

Body Mass Index or BMI is a tool for indicating weight status in adults.1 It is a measure of weight for height. For adults over 20 years old, BMI falls into one of these categories:

BMI Weight Status
Below 18.5 Underweight
18.5 – 24.9 Normal
25.0 – 29.9 Overweight
30.0 and Above Obese

BMI correlates with body fat. The relation between fatness and BMI differs with age and gender. For example, women are more likely to have a higher percent of body fat than men for the same BMI. On average, older people may have more body fat than younger adults with the same BMI.

For more information about overweight among adults, see Clinical Guidelines on the Identification, Evaluation, and Treatment of Overweight and Obesity in Adults. Bethesda, MD: NHLBI, 1998.


Health Tip: 
What Waistlines Tell Us About Our Health


If the knowledge that a bulging waistline could increase your risk of developing diabetes or heart disease was not compelling enough to encourage weight reduction, perhaps newly published findings relating waist measurement to health status will get your attention.

Click here to read the whole Healthtip ...


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