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Calculate your Body Mass Index in metric or imperial.
Calculate your Body Mass Index (BMI) from your height and weight, in metric or imperial units. See which category your BMI falls into and the healthy weight range for your height.
BMI is a quick screening measure, not a diagnosis. It doesn't distinguish muscle from fat, and it's interpreted differently for children and teens, athletes, and during pregnancy.
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A BMI between 18.5 and 24.9 is generally considered a healthy weight for most adults.
BMI is a useful general guide but doesn't account for muscle mass, age, or body composition — treat it as one signal, not a diagnosis.