Body mass index (BMI) is a measure of body fat based on height and weight that applies to adult men and women.
* Enter your weight and height using standard or metric measures.
* Select "Compute BMI" and your BMI will appear below.
Body Mass Index (BMI) can be used to indicate if you are overweight, obese, underweight or normal. It will, however, overestimate fatness in people who are muscular or atheletic. Because of these problems, this body mass index calculator shows extra statistics to help you be informed and judge your own body compared to others of the same height and age.