The measurements need to be accurate to within 0.25 inch and should be taken as follows:
Height: taken without shoes
Neck: taken below the larynx sloping slightly downward at the front
Waist: for men at navel height, for women at the smallest point
Hips: at the largest point
Body Fat Calculator
Height
Neck
Waist
Hips
Gender
Your Body Fat is
Female
Male
Classification
10-12%
2-4%
Essential Fat
14-20%
6-13%
Athletes
21-24%
14-17%
Fitness
25-31%
18-25%
Acceptable
31%+
25%+
Obese
BMI Calculator
Body Mass Index
For those not familiar with body mass index, it is the the ratio of body weight to the square of your height and is a general indication of whether someone is overweight.
The following calculator uses your weight and height to determine your body mass index.