What is the formula for calculating BMI?

The formula for calculating Body Mass Index (BMI) is important for determining a person's body weight in relation to their height. The correct formula, which weights in pounds and height in inches, is given by dividing weight in pounds by height in inches squared, and then multiplying by a conversion factor of 703. This adjustment is necessary because BMI is typically expressed as kg/m² in metric units, and the conversion factor aligns the units appropriately for calculations using pounds and inches.

This formula helps in assessing whether an individual has a healthy body weight relative to their height, providing a quick screening tool for weight categories that can indicate potential health risks. Understanding this formula is crucial for various health assessments and applications in medical fields, including sleep disorders where weight may influence sleep health.