How is Body Mass Index (BMI) calculated?

• A. Weight divided by age
• B. Weight multiplied by height
• C. Ratio of weight to height
• D. Height squared divided by weight

Answer: (C)

Body Mass Index (BMI) is calculated using the ratio of weight to height, more specifically by assessing how an individual's weight compares to their height. The formula is defined as body weight in kilograms divided by the height in meters squared (kg/m²). This measurement allows for a standardized way to categorize individuals into different weight classifications, such as underweight, normal weight, overweight, and obesity, based on their BMI value.

The understanding of BMI is crucial in physical education and health assessments since it provides a useful, quick screening tool for potential weight-related health issues. While other options might seem related to measurements of weight or height, they do not accurately represent the standard calculation method used for determining BMI, leading to confusion about the relationships among weight, height, and health.