NHS an expert in BMI

BMI is an accronym for Body Mass Index which is a measurement of a person's leanness or corpulence based on their heigght and weight, and is intended to quantify tissue mass. It is an indicator of whether a person has a healthy body weight for their height. The BMI value is then used to categorize if a person is underweight, normal weight, over weight, or obese depending on what range the value falles between.

BMI Table

WHO recommended body weight based on BMI values are shown in the table below

Classification BMI range - kg/m2
Severe Thinness 16
Moderate Thinness 16 - 17
Mild Thinness 17 - 18.5
Normal 18.5 - 25
Overweight 25 - 30
Obese Class I 30 - 35
Obese Class II 35 - 40
Obese Class III > 40