The limits of an appropriate BMI are strongly related to the child's developmental stage. The BMI is calculated using the same formula as the BMI of adults, but is interpreted according to age. In children and infants, the BMI can be used as a rough guideline for the healthy development of the child. Age and gender play an important role in the interpretation of the BMI. The BMI is only a rough guide value, as it does not take into account a person's stature or the individual composition of body mass from fat and muscle tissue. The Body Mass Index (BMI) is a measure of a person's body weight in relation to their height. That is, the normal range (green in the diagrams) corresponds to the average in the population at the time of the survey. The interpretation of the calculated BMI value is based on the comparison with the tabulated average values of the population. The present BMI classification of the WHO has essentially existed since 1995.įor example, if a person is 175 cm tall and weights 65 kg, then the BMI is calculated as follows:īMI = m ÷ L 2 = 65 ÷ 1.75 2 = 65 ÷ (1.75 ⋅ 1.75) = 65 ÷ 3.0625 = 21.2 Since the beginning of the 1980s, the BMI has also been used by the World Health Organization.

The interpretation of the calculated BMI value is based on the comparison. The BMI is a rough guide, since it does not take into account either stature or weight distribution. Example for the calculation of the BMI: For example, if a person is 175 cm tall and weights 65 kg, then the BMI is calculated as follows: BMI m L 2 65 1.75 2 65 (1.75 1.75) 65 3.0625 21.2. The Body Mass Index (BMI) is a measure that sets the weight in the ratio to the square of the body weights.

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