C BMI is commonly used as a simple and quick indicator of whether a person has a healthy body weight in relation to their height. - BMI is calculated by dividing a person's weight (in kilograms) by the square of their height (in meters). - The formula for calculating BMI is: BMI = weight (kg) / (height (m) * height (m)). - The resulting BMI value is categorized into different ranges to assess whether a person is underweight, normal weight, overweight, or obese. - The standard BMI categories are as follows: - Underweight: BMI less than 18.5 - Normal weight: BMI between 18.5 and 24.9 - Overweight: BMI between 25 and 29.9 - Obese: BMI of 30 or higher