Body Mass Index · WHO Classification
Last reviewed: January 2025
| BMI Range | Category | Health Risk |
|---|---|---|
| < 18.5 | Underweight | Increased risk of malnutrition |
| 18.5 – 24.9 | Normal weight | Lowest health risk |
| 25.0 – 29.9 | Overweight | Moderate health risk |
| 30.0 – 34.9 | Obese Class I | High health risk |
| 35.0 – 39.9 | Obese Class II | Very high health risk |
| ≥ 40.0 | Obese Class III | Extremely high risk |