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BMI Calculator






Sex


Height


Weight

BMI


Population Average


Classification








Instructions


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


Body mass index (BMI) can be used to screen patients because the
test is simple, correlates to fatness, and applies to both men and women.
The BMI may not apply to some individuals with more than normal muscle
mass and acceptable levels of body fat. In some ethnic groups, such as
Pacific Islanders, BMI overestimates fatness and risk. For children and
the elderly, BMI may be misleading since the muscle and bone to height
relationship is changing.






















BMI Key
< 18.5 underweight
18.5 to 24.9 healthy
25 to 29.9 overweight
 30 to 34.9 grade 1 obesity
35 to 39.9 grade 2 obesity
face="Verdana, Arial, Helvetica, sans-serif"
size=-1>>40		 grade 3 (morbid
obesity)


BMI can be used with body composition to assess fat free mass:



  • Fat free mass is low if BMI is low and body fat is high (if =<BMI &
    >BF, then <FFM)
  • Fat free mass is high if BMI is high and body fat is low (if =>BMI
    & <BF, then >FFM)


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


World Health Organization (1997). Obesity: preventing and managing the
global epidemic. Report of a WHO consultation on obesity. Geneva.


Welborn TA, Dhaliwal SS, & Bennett SA (2003). Waist–hip ratio is the
dominant risk factor predicting cardiovascular death in Australia. The Medical
Journal of Australia; 179 (11/12): 580-585.