In medicine, many ways are known to calculate the "ideal" weight.

The body mass index (abbreviated BMI) is a medical and biological indicator used to determine the normal, healthy weight in people of different heights and to diagnose obesity and malnutrition.

The body mass index is determined by a special formula where BMI is the body mass index, W is the weight in kilograms and h is the height in meters.

BMI = W / h2