BMI Calculator: Healthy Weight

Find your body mass index in a second — just enter your height and weight. What you get: • your BMI and category under the World Health Organization classification, from underweight to class III obesity; • the healthy weight range for your height (BMI 18.5–24.9); • target weight — two linked scales, BMI on top and weight below. Drag the slider to see the weight for any BMI and how far it is from your current weight; • quick buttons: "Upper normal", "Middle" and "My weight"; • a short summary you can copy or share. Handy: • results update instantly, no "Calculate" button; • − and + buttons in the height and weight fields; • a Norms tab with the category table, formulas and BMI limitations; • term explanations behind the "?" button; • light and dark themes; • your height and weight stay on your phone. When BMI can mislead: it does not tell fat from muscle, adult cut-offs do not apply to children and teenagers under 18, and it is not used in pregnancy. Older adults and people of Asian descent have different thresholds — see the Norms tab. The app is free and contains ads. The app is not a medical device and does not diagnose or treat any condition. For questions about your weight and health, consult a doctor.

A completely new version: modern design with light and dark themes; WHO classification with exact healthy weight limits; a new target weight scale — drag the slider to see the weight for any BMI; a Norms tab and term explanations; share or copy your summary; a new icon.