The BMI (Body Mass Index) Calculator helps you determine if you have a healthy body weight by calculating weight/height ratio. Keep in mind that it doesn’t calculate body fat directly; so it’s only one factor to consider. For example, if you’re a very fit bodybuilder, you might have a high BMI because of the muscle weight, and not the fat.


The Body Mass Index (BMI) is determined with the formula body weight divided by height in meter to square. To make it easy for visitor of your homepage to calculate the Body Mass Index (BMI), use the Free BMI Script by BMI-Club . Additional information: Body Mass Index (BMI) Calculator.
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Meaning (WHO):

BMI                 Meaning

less than 19     Underweight

19 to 25          Normal weight

25 to 30          Over weight

30 to 35          Obesity 1

35 to 40          Obesity 2

more than 40   Obesity 3


Meaning (NRC 1989):

Age        BMI Normal weight

19–24     19–24

25–34     20–25

35–44     21–26

45–54     22–27

55–64     23–28

Ab 65     24–29