Body Mass Index (BMI): Age Trend
Median US BMI rises from 27 kg/m² in the mid-20s to 29 for men (WHO overweight) and from 26 to 30 for women (rising into obese) by the mid-50s, then edges down slightly.
Body Mass Index (BMI) Body Composition Trend
BMI body mass index weight height obesity overweight underweight trend aging norms normative data normative values reference values percentiles benchmarks reference ranges standards Body Mass Index (BMI) by Age Chart (kg/m²)
Body Mass Index (BMI) Median Values
| Age | Male (kg/m²) | Female (kg/m²) |
|---|---|---|
| 20-29 | 27.0 | 25.5 |
| 30-39 | 27.8 | 28.6 |
| 40-49 | 28.9 | 28.5 |
| 50-59 | 29.0 | 30.0 |
| 60-69 | 28.3 | 28.8 |
| 70-79 | 28.8 | 28.0 |
| 80+ | 27.2 | 26.9 |