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Calculate your Body-mass Index

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.
Click here for the American version of this page.

Note: your browser must support Javascript, or this will not work.

Enter your height in meters (e.g., 1.82): Enter your weight in kilograms (e.g., 70.5):
Press the button when you're ready to see your BMI:
Your result: