BMI Calculator
Calculate your Body Mass Index (BMI) using either metric or imperial units. Enter your weight and height to instantly see your BMI score and health category — Underweight, Normal, Overweight or Obese.
How to use BMI Calculator
- Select your unit system — Metric (kg and cm) or Imperial (lbs, feet and inches).
- Enter your weight and height.
- Click Calculate BMI to see your score and WHO category.
BMI categories (WHO): Under 18.5 = Underweight · 18.5–24.9 = Normal · 25–29.9 = Overweight · 30+ = Obese.
BMI is a screening tool, not a diagnostic measure. Always consult a healthcare professional for medical advice.