Updated
Health
BMI Calculator
Calculate Body Mass Index in metric or imperial units, see your BMI category, healthy weight range for your height, target weight for a goal BMI, plus BMI Prime and the Ponderal Index.
Body Mass Index, Healthy Weight Range & Target Weight Estimator
Choose units, enter height and weight, then view BMI, category, healthy weight range, and goal weight calculations.
BMI is a screening metric for adults and does not directly measure body fat. It can be less accurate for athletes, very muscular people, pregnancy, older adults, and children/teens. Use BMI with other measurements for a better picture.
This tab converts a BMI range into a weight range for your height. Many people use 18.5–24.9 for adults, but you can set a custom range for planning.
This is a math-based target, not medical advice. A good “goal BMI” depends on health context, body composition, and clinician guidance. Use it for planning and discussion.
BMI Prime makes BMI easier to compare across people. Ponderal Index scales height cubed and is sometimes used for very tall or very short body types.