Calculate body mass index from height and weight, with the standard weight category.
Read the full BMI Calculator guide →BMI is a screening number, not a diagnosis. It says nothing about muscle, bone density or where fat sits on the body, which is why very muscular people often land in the overweight range. Use it as one signal among several.
BMI = 703 × weight (lb) ÷ height (in)².
Often not. Muscle is denser than fat, so lifters and sprinters routinely score 'overweight' with low body fat. Use body fat percentage instead.
18.5 to 24.9 is the standard adult healthy range. Children use age- and sex-specific percentile charts, not this number.
