Calculating BMI:
The BMI is calculated as follows:
Normal weight: 18.5 – 24.9;
Underweight: < 18.5;
Overweight: 25 – 29.9;
Obesity: ≥ 30.
Example of the “ideal” weight depending on height.

Height (cm)
Ideal weight (kg)
150
42 – 56
155 45
– 59 160 47 – 64 165 50 – 68 170 53 – 72 175 56 – 76 180 59 – 81 185 63 – 86 190 67 – 90 These figures apply to adults. For children and adolescents, the curves vary depending on age and gender.