Body Mass Index, calculated and explained
The BMI Calculator computes your Body Mass Index from height and weight, in metric or imperial units, and places the result on the standard WHO scale — underweight, normal, overweight or obese — with the healthy weight range for your height spelled out.
BMI is a screening number, not a diagnosis: it tells you where your weight sits relative to height so you can track changes over time and know when to seek professional advice. The tool shows both the number and its category, so a value means the same thing every time you check.
Everything is computed in your browser; no measurement is stored or sent anywhere. Use it consistently — same time of day, same scale — and treat the trend, not a single reading, as the meaningful signal. For medical decisions, always consult a healthcare professional.
Like every Piclizer tool, this one runs entirely in your browser — your files stay on your device.