BMI Calculator — Metric (kg, cm)
The metric BMI page works in kilograms and centimeters, the units used across most of the world and in clinical practice. It applies the original formula BMI = kg / m², dividing your height in centimeters by 100 to get meters before squaring it. Enter a weight in kilograms and a height in centimeters to see your index, your WHO category, and the kilogram weight band that keeps BMI between 18.5 and 24.9 for your height.
Body mass index estimate
Estimated BMI
22.9
Normal weight
Reference for your height
Healthy weight band (kg) for BMI 18.5–24.9 at the height entered.
BMI = kg / m², classified against the WHO adult categories. It is a screening estimate that ignores muscle, frame, age, and sex — not a medical diagnosis or dietary advice. Consult a healthcare professional before acting on this number.