Body Mass Index (BMI) is a simple numerical measure of a person's weight relative to their height. It is commonly used to classify underweight, overweight, and obese adults.

The formula divides weight in kilograms by the square of height in metres.

BMI is a general indicator and does not account for muscle mass, bone density, overall body composition, or racial differences. It should be used as a starting point rather than a definitive measure of health.

For a more comprehensive health assessment, consider consulting with a healthcare professional.