BMI Calculator

Calculate your Body Mass Index (BMI) to understand your weight category.

BMI Categories

< 18.5Underweight
18.5 - 24.9Normal weight
25 - 29.9Overweight
≥ 30Obese

Formula

  • Metric: BMI = weight (kg) / height² (m²)
  • Imperial: BMI = (weight (lbs) / height² (in²)) × 703