Body mass index
http://www.deccanhealth.com/content/body-mass-index-effective-way-estimate-body-composition(BMI) is an estimate of body composition that correlates an
individual's weight and height to lean body mass. The BMI is thus an
index of weight adjusted for stature. Body mass index is figured by
dividing weight in kilograms by height in meters squared and
multiplying by 100. It can also be figured by dividing weight in
pounds by height in inches squared and multiplying by 705.