⚖️BMI Calculator
Body Mass Index from height & weight (metric/imperial).
Disclaimer: These tools are for general information and educational use only and are not medical advice, diagnosis or treatment. Individual health needs vary. Always consult a qualified doctor or healthcare professional before making health decisions.
About BMI Calculator
Calculate your Body Mass Index (BMI) from your height and weight using metric or imperial units. See your BMI category — underweight, normal, overweight or obese — based on WHO ranges. Free, private and instant.
🔒 Private by design — this tool runs entirely in your browser. Nothing you enter is uploaded to a server.
Frequently asked questions
How is BMI calculated?＋
BMI = weight (kg) ÷ height (m)². For imperial units it uses 703 × weight(lb) ÷ height(in)².
What is a healthy BMI range?＋
According to the WHO, 18.5–24.9 is considered a normal, healthy weight.