Body mass index (BMI) measures body fat based on height and weight. “How to calculate BMI with pounds” refers to the method of determining BMI using imperial units, where weight is measured in pounds. For instance, to calculate the BMI of a person who weighs 150 lbs. and is 5’10” tall, you’d need to convert their height to inches (70 inches) and plug these values into the BMI formula.
BMI is a useful tool for assessing obesity risk and related health problems. It was developed in the 1830s and has since become a widely accepted measure of body composition.