How is BMI calculated?

The calculation of Body Mass Index (BMI) is designed to provide a numerical value that reflects an individual's body weight in relation to their height, which helps in assessing whether a person falls into underweight, normal weight, overweight, or obese categories.

To calculate BMI, the weight is taken in pounds, which is then multiplied by 703. This conversion factor is used because the BMI formula originally uses metric units. After multiplying the weight by 703, the result is then divided by the height in inches squared. This process correctly factors in both weight and height to arrive at the BMI value.

Using the formula ensures that the resulting BMI is consistent with standard classifications used in healthcare. Understanding this method allows for accurate assessments which can be crucial for evaluating an individual's health and potential risks related to their weight.