BMI Calculator
Your BMI Result
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Please enter valid height and weight values.
Select units and enter height/weight to calculate BMI.
BMI Categories for Adults (WHO)
| Category | BMI Range (kg/m²) |
|---|---|
| Underweight | < 18.5 |
| Normal weight | 18.5 – 24.9 |
| Overweight | 25 – 29.9 |
| Obese | ≥ 30 |
Important Note for Child/Teen BMI
For children and teens (ages 2-19), BMI is interpreted differently than for adults. It needs to be compared to **age and sex-specific percentile charts** to determine the weight category (Underweight, Healthy Weight, Overweight, Obese).
Please consult resources like the CDC or the WHO, or speak with a healthcare provider for accurate interpretation.