BMI calculator
Calculate your Body Mass Index (BMI) and see the WHO classification.
Your BMI
22.9
ClassificationNormal weight
Healthy weight range56.7–76.3 kg
BMI is a general reference and does not separate lean mass from fat. Consult a health professional.
How the calculation works
Body Mass Index (BMI) relates weight and height:
BMI = weight (kg) ÷ height² (m)
WHO ranges: under 18.5 (underweight), 18.5–24.9 (normal), 25–29.9 (overweight), 30+ (obesity).
Frequently asked questions
Does BMI apply to athletes?
Not always: very muscular people may have a high BMI without excess fat. Other measures fit better in those cases.
Updated on June 17, 2026.