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BMI Calculator

Calculate Body Mass Index to assess weight health

BMIbody mass indexobesity

📖 How to Use

  1. Enter your height in centimeters
  2. Enter your weight in kilograms
  3. Click Calculate BMI

📐 Formula

BMI = weight(kg) / height(m)²
WHO: <18.5 underweight, 18.5–25 normal, 25–30 overweight, ≥30 obese

❓ FAQ

Is BMI accurate?
BMI is a rough indicator and may not suit athletes, pregnant women, or the elderly. Body fat percentage is more precise.
Are BMI standards the same everywhere?
No — some countries (e.g., China) use stricter ranges. The international normal range is 18.5–25.

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About BMI Calculator

This tool is completely free, no registration required. Works directly in your browser. Supports both PC and mobile devices.

BMI Calculator is a free online tool that works on both PC and mobile. No registration or download required — just open in your browser. Results are accurate and reliable for everyday use and professional reference.