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Calculators - BMI    Join Now!

Estimate your Body Mass Index (BMI) - A number that describes a body's relative weight and correlates to total body fat.







  Population Average

Your Rating

Enter information in height and body weight column; select appropriate gender and measurement units. Click "Calculate".

The BMI may not apply to some individuals with more than normal muscle mass and acceptable levels of body fat. For children and the elderly, BMI may be misleading since the muscle and bone to height relationship is changing.

BMI Rating

less than 18.5underweight
18.5 to 24.9healthy
25 to 29.9overweight
30 to 34.9grade 1 obesity
35 to 39.9grade 2 obesity
over 40grade 3 (morbid obesity)

ACSM (2001). ACSM's Resource Manual for Guidelines for Exercise Testing and Prescription, 4th ed., pg 7.

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