Body mass index (BMI) is a measure of body fat based on height and weight. It is used to screen for weight-related health problems such as obesity and malnutrition. Calculating BMI is simple and can be done using a variety of online calculators or apps.
BMI is important because it can help you assess your weight status and risk of developing weight-related health problems. It is also used by healthcare providers to diagnose and treat obesity and malnutrition. BMI was developed in the 19th century by Belgian statistician Adolphe Quetelet as a way to measure average body weight.