Body Mass Index Calculator  
The body mass index (or BMI) is a measure for human body shape that is calculated on an individual's mass (weight) and height. Previously called the Quetelet Index the BMI provides a simple measure of a person's "thickness" or "thin-ness". The calculator below will allow you to calculate your body mass index and compare to the WHO categories provided.  
Your Weight in Kilograms: BMI:  
Your Height In Centimeters:  
Very severely underweight less than 15    
Severely underweight from 15.0 to 16.0    
Underweight from 16.0 to 18.5    
Normal (healthy weight) from 18.5 to 25    
Overweight from 25 to 30    
Obese Class I (Moderately obese) from 30 to 35    
Obese Class II (Severely obese) from 35 to 40    
Obese Class III (Very severely obese) over 40