What is BMI?
BMI (Body Mass Index) is a measure of body fat based on height and weight. Formula: BMI = weight(kg) / (height(m))². It helps determine if you're underweight, normal weight, overweight, or obese.
BMI Categories (WHO Standards)
Underweight: Below 18.5 | Normal: 18.5-24.9 | Overweight: 25-29.9 | Obese: 30 and above
Sources & methodology
Formulas on this page are shown in full above and verified against official sources.
Results are estimates for education and planning — not financial, tax or investment advice. Verify important decisions with a qualified professional.