About the BMI Calculator
The BMI Calculator computes Body Mass Index (kg/m²) and shows the WHO classification. BMI is a rough population-level screening value — it does not distinguish muscle from fat, so athletes often score "overweight" while being lean.
Below 18.5 underweight, 18.5–24.9 normal, 25–29.9 overweight, 30+ obesity. Individual health depends on far more than this single number.