How is Body Mass Index (BMI) calculated?

Body Mass Index (BMI) is calculated using the formula weight in kilograms divided by height in meters squared. This formula is represented mathematically as BMI = weight (kg) / (height (m) x height (m)), or simply weight (kg) / height (m²).

The reason this calculation is significant is that it provides a standardized way to assess body weight relative to height, which aids in categorizing individuals into weight categories such as underweight, normal weight, overweight, and obese. This categorization can be essential for identifying potential health risks associated with being underweight or overweight.

The other options do not correctly represent the formula for calculating BMI. For example, height divided by weight does not yield a meaningful measurement of body composition or health status, and simply multiplying weight by height does not provide an indication of weight relative to height. Overall, understanding this calculation is crucial for anyone involved in health, fitness, or weight management.