It is obvious that, knowing only a body weight of the person, it is impossible to tell whether it is normal for him. For someone weight in 70 kg can be normal, for someone - insufficient, and for someone - superfluous. It is clear, that for such assessment it is necessary to obtain some compliance between the body weight and human height. Such compliance also gives body mass index.
It is required to you
- calculator, Internet access. your growth and weight
Instruction
1. To count body mass index, it is enough to carry out measurements of two indicators - human height and its body weight. Measurements, naturally, have to take place during one period of time. The body weight of the person of m needs to be measured in kilograms. For this purpose the easiest to use usual scales. The human height needs to be measured in meters that it is also easy to make standard methods.
2. So, you have a mass of m expressed in kilograms and growth of h expressed in meters. Body mass index of the person is equal to I = to m / (h^2). Respectively, unit of measure of the body mass index (BMI) - kg / (м^2). For example, the person of 1.73 m in height weighs 65 kg. Then its BMI is equal to I = 65 / (1.73^2) ~ 21.72.
3. On the Internet the set of the websites where it is possible to count the body mass index is available now and to learn whether it meets standard. For this purpose it is necessary just to hammer age and sex. For men and women, children, teenagers and adults the indicators of normal BMI differ. Therefore it is necessary to get acquainted with a competent source of information on BMI for different categories of people, for example, at your doctor.