What is BMI?
Body Mass Index (BMI) is a simple calculation using a person's height and weight. The formula is BMI = kg/m² where kg is a person's weight in kilograms and m² is their height in meters squared. BMI is a useful indicator of body fatness for most people and is used to screen for weight categories that may lead to health problems.
BMI Formula
The BMI formula differs based on the unit system: Metric: BMI = weight (kg) / height² (m²) Imperial: BMI = (weight (lb) / height² (in²)) × 703 For example, a person weighing 70 kg and measuring 1.75 meters would have a BMI of 22.9.