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Body Mass Index (BMI) calculator

Enter your height and weight,
then click the "Compute BMI" button.
U.S. Units Metric Units

  feet    inches


Body Mass Index (BMI)         kg / m2

The BMI Calculator calculates the Body Mass Index which is a measure of obesity for adult men and women. The BMI is calculated by dividing the body weight (in kilograms) by the height (in meters) squared (BMI = weight/height2). The BMI will overestimate fatness in people who are muscular or athletic, but fit persons will have a Waist-to-Height ratio less than 0.5, whereas overweight people have Waist-to-Height ratios greater than 0.5.

Underweight BMI less than 18.5
Normal weight BMI 18.5 to 24.9
Overweight BMI 25 to 29.9
Obese BMI 30 or greater
Morbidly Obese BMI 40 or greater
BMI figures

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