BMI Calculator
Calculate your Body Mass Index (BMI) from height and weight. See your category on a visual scale with healthy weight range.
Your Details
Result
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💡 BMI Formula
How it works
- BMI = weight (kg) / height² (m²).
- A simple screening tool — not a diagnostic.
- BMI doesn't distinguish between muscle and fat mass.
📊 Categories
WHO Classification
- Below 18.5 — Underweight
- 18.5–24.9 — Normal weight
- 25.0–29.9 — Overweight
- 30.0+ — Obese
⚠️ Limitations
Keep in mind
- Athletes may have high BMI due to muscle
- Doesn't account for age, gender, ethnicity
- Waist circumference is a better fat indicator
- Consult a doctor for proper assessment
Frequently Asked Questions
What is a healthy BMI?▾
A BMI between 18.5 and 24.9 is considered normal weight by WHO standards. However, optimal BMI varies by age, gender, and body composition. Athletes often have a higher BMI due to muscle mass.
Is BMI accurate for everyone?▾
BMI is a useful population-level screening tool but has limitations for individuals. It doesn't differentiate between muscle and fat, so very muscular people may be classified as overweight despite being healthy.