The body mass index (BMI), or Quetelet index, is a heuristic proxy for human body fat based on an individual's weight and height. Body mass index is defined as the individual's body weight divided by the square of his or her height. Find more on Body Mass Index at:

Find Your BMI

Calculate BMI


Enter height & weight and instanly see your BMI above & your health category at right hand side reference table.

BMI Reference Table

# BMI Range Category
1 Less Than 16.0 Severely underweight
2 From 16.0 to 18.5 Underweight
3 From 18.5 to 25 Normal
4 From 25 to 30 Overweight
5 From 30 to 35 Obese Class I
6 From 35 to 40 Obese Class II
7 Over 40 Obese Class III

Know Your Ideal Weight

Normal BMI:
From 18.5 to 25
Weight Unit:

Enter height to see your ideal weight range for normal BMI.