Everyone has heard of body mass index (BMI) and except in muscular people it takes ones height and produces an appropriate weight range... Normal is considered 18.5-25... Over 30 is obese. Calculating BMI is relatively straight forward... Where W is weight in pounds and H is height in inches then... More results like this http://www.weightladder.com/using-bmi-to-calculate-required-weightloss/ Tags:toolsbmiweightnormal01consideredrangeobese2inches3highgivenxhw4height5algebraproducelbsdefinitionlonger