Calculator
Body Mass Index (BMI) Calculator
Calculate BMI from weight and height and classify weight status.
Calculate
All fields required unless notedEnter your values and press Calculate to see the result.
Formula & Clinical Notes
Formula
BMI = Weight (kg) / Height (m)²
Clinical Notes
WHO classification: underweight < 18.5, normal 18.5–24.9, overweight 25–29.9, obesity class I 30–34.9, class II 35–39.9, class III ≥ 40. BMI does not distinguish fat from muscle and should be interpreted alongside waist circumference in some populations.
Recent Calculations
-
Inputs:Result: