BMI Calculator
Body Mass Index from weight and height, with the standard WHO category.
About BMI
What does BMI measure?
BMI = weight(kg) ÷ height(m)². It is a screening tool, not a diagnostic of body fat or health.
What categories exist?
Under 18.5 underweight · 18.5–24.9 normal · 25–29.9 overweight · 30+ obese (WHO).