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. BMI is calculated by dividing weight in kilograms by the square of height in meters. However, in many countries, including the UK, BMI is often calculated using stones and pounds instead of kilograms and meters.
Calculating BMI in stones and pounds is important for assessing weight status and identifying individuals at risk for weight-related health problems. It is also used for tracking weight loss progress and monitoring the effectiveness of weight loss interventions. The history of BMI dates back to the 19th century when Belgian statistician Adolphe Quetelet developed the Quetelet index, which is the precursor to modern BMI.