Body Max Index

Body Mass Index (BMI) is a simple calculation using a person’s height and weight. The formula is BMI = kg/m2 where kg is a person’s weight in kilograms and m2 is their height in metres squared. A BMI of 25.0 or more is overweight, while the healthy range is 18.5 to 24.9. BMI applies to most adults 18-65 years.
BMI is not used for muscle builders, long distance athletes, pregnant women, the elderly or young children. This is because BMI does not take into account whether the weight is carried as muscle or fat, just the number. During pregnancy and lactation, a woman's body composition changes, so using BMI is not appropriate.
For further information: Lifestyle Patterns and Weight Status in Spanish Adults: The ANIBES Study