Although this index is highly criticized and its use is anything but consensual, BMI (**Body Mass Index**) is often used because of its ease of calculation to assess the degree of obesity. This being the standard chosen by the World Health Organization, this measure is more used nowadays, as a way of comparing the health of populations. The BMI assumes that there is an ideal weight range, given its height. From a mathematical formula that uses your weight and height, it is relatively easy to calculate BMI. On this page you can enter your data and get to know your Body Mass Index.