Height (in): Weight (lb):
Height (m): Weight (kg):

BMI =

Interpretation, per the National Institutes of Health:

>30 = obese: >lbs

25-29 is overweight.

18.5 to 25 is normal: lbs to lbs

For pediatrics, see Pediatrics BMI calculator

More information on interpreting BMI is available from CDC and from a useful website called Halls.MD. Body Mass Index is defined as weight in kg divided by (height in meters) squared. http://MountainMeadow.us/bmi