Healthy BMI Ranges by Age
Standard adult BMI ranges
| Category | BMI |
|---|---|
| Underweight | < 18.5 |
| Normal | 18.5 – 24.9 |
| Overweight | 25.0 – 29.9 |
| Obesity | ≥ 30.0 |
Context matters
- Older adults may have different health risks at a given BMI than younger adults.
- Highly muscular individuals can read as “overweight” despite low body fat.
- Use BMI as a screening tool, not a diagnosis. Consult a clinician for personalized advice.
Calculate your BMI with the BMI Calculator or learn the BMI formula.