BMI Calculator

Body Mass Index (BMI) is a simple number that compares your weight to your height. It gives a quick, general sense of whether your weight falls in a healthy range for your height.

The math is straightforward: we divide your weight in kilograms by your height in metres squared. The result places you into one of four ranges — underweight, normal, overweight, or obese.

BMI is a useful screening tool, but it does not measure body fat directly and does not account for muscle mass, bone density, or body composition. Athletes, for example, may have a high BMI from muscle rather than fat. Treat it as a starting point, not a diagnosis.