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Body-Mass Index (BMI)

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Definition:

Body-mass index (BMI) is a person's weight in pounds divided by his height in inches squared, multiplied by 703. As an indicator of weight relative to height, BMI measurements may help diagnose obesity or if a person is overweight.

To determine your BMI, you can use the formula, or an online calculator or chart (this calculator and chart applicable to adults only). For an adult, a healthy BMI is between 18.5 and 25, depending on height.

BMI charts for children are different. Consult a pediatric calculator for accurate information.

See all fitness terms.

Also Known As: BMI
Related Video
How to Calculate BMI
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