Body mass: 8 st, 12 lb 5 ft, 6 in
Underweight, overweight or normal? This test will graph your results in a few seconds.
Body Mass Index Prime is method of using the results of the BMI calculations to quickly and easily rank a person into a category. Eg:
 BMI Prime less than 0.74 = Underweight.
 BMI Prime greater than 0.74 and less than 1.00 = Optimal weight.
 BMI Prime greater than 1 = Overweight
Body Mass Index Formula
You can use the following formula to calculate your BMI:

BMI = weight(kilograms) / height^{2} (metres^{2}) (Metric Units)
BMI = 703 . weight(pounds) / height^{2} (inches^{2}) (Imperial Units)