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BMI Calculator

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Calculate Your BMI

1. How to Use

  1. Select Metric (kg/cm) or US Units (lbs/ft, in).
  2. Enter your height and weight in the appropriate fields.
  3. Click Calculate BMI to see your result and health category.

2. How It Works

BMI = Weight ÷ Height². Metric: kg/(m²). US: (Weight lbs × 703) ÷ Height in².

Categories: Underweight (<18.5), Normal (18.5–24.9), Overweight (25–29.9), Obese (≥30).

3. About BMI Calculator

Free online BMI calculator for health assessment. Calculate your Body Mass Index with metric or imperial units. Results include health category classification.

Note: BMI does not reflect body composition, skeletal structure, age, or other individual factors.

4. Advantages

  • Dual unit support: Metric and US units.
  • Visual scale showing your position.
  • Health category with recommendations.
  • All calculations run locally in your browser.

5. Real-World Use Cases

  • Health screening and body composition assessment.
  • Fitness goals and weight management.
  • Research, studies, and population health.
  • Personal health monitoring.