For instance, if your height is 1.82 meters, the divisor of the calculation will be (1.82 * 1.82) = 3.3124.  If you weigh 70.5 kilograms, then your BMI is 21.3 (70.5 / 3.3124).

It is said that people with BMI's between 19-22 live longest.  All i have to say is "hmmmm" as mine is above 25.  Death rates are noticeably higher for people with indexes 25 and above.  But if you smile a lot, and drink plenty of red wine with your steak, you will live longer :) regardless of BMI.

Below is the American version of the calculation.  Enter your height (in feet and inches) and weight (in pounds) in the boxes below, and then click "calculate".  These are converted to metric values to figure your BMI.

Note:  your browser must support JavaScript, or this BMI calculator will not work.

Also Note:  if you are exactly 5 feet or 6 feet tall, put a 0 in the inches box.  The result is "infinity" if you leave the inches box empty.

Remember:

To get the big picture, let me point you to some helpful links to research the subject.