Your body-mass index ("BMI") measures your height/weight ratio. Compute it by dividing your weight in kilograms by the square of your height in meters.

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

People with BMIs between 19 and 22 live longest. Death rates are noticeably higher for people with indexes 25 and above.

To figure your BMI, enter your height and weight in the boxes below, and then click "calculate". This is the metric version of the calculation because you must enter your height in meters, and your weight in kilograms.

Disclaimer: Remember, you can have a high BMI and a low body fat percentage.  BMI is only one measure of your health.  Body fat per centage, blood pressure, resting heart rate, cholesterol and other measurements are at least as important as BMI.  You need to get the whole picture.  This page can point you to some links, but you should research the subject and be evaluated professionally for a complete and accurate picture of your health.