Height for boys at 11 years
At 11 years, the median height for boys on the CDC 2000 growth charts is 143.5 cm (56.5 in): half of boys this age measure less and half more. The middle half of boys, from the 25th to the 75th percentile, falls between 138.8 and 148.3 cm, a spread of 9.5 cm. The outer lines of the chart, the 3rd and 97th percentiles, sit at 130.6 and 157.0 cm.
Since 10 years, the median has risen by 4.9 cm over 1 year. By 12 years it reaches 149.1 cm.
For girls at 11 years the median is 144.0 cm, 0.5 cm more than for boys, which is why the charts are drawn separately by sex.
From 2 years CDC recommends its own 2000 growth charts, which draw the 3rd to the 97th percentile; under 2, the WHO charts draw the 2nd to the 98th.
Reading the table: a boy at 11 years who measures 146.5 cm is at about the 66th percentile, meaning that out of 100 boys this age, about 66 measure less. From 2 years this is height measured standing. If a child of 2 or older was measured lying down, CDC subtracts 0.8 cm before comparing.
Percentiles at 11 years
Download CSV (all ages)| Percentile | z-score | Metric | Imperial |
|---|---|---|---|
| 3rd | −1.88 | 130.6 cm | 51.4 in |
| 5th | −1.64 | 132.2 cm | 52.1 in |
| 10th | −1.28 | 134.7 cm | 53.0 in |
| 25th | −0.67 | 138.8 cm | 54.7 in |
| 50th (median) | 0.00 | 143.5 cm | 56.5 in |
| 75th | +0.67 | 148.3 cm | 58.4 in |
| 90th | +1.28 | 152.7 cm | 60.1 in |
| 95th | +1.64 | 155.3 cm | 61.1 in |
| 97th | +1.88 | 157.0 cm | 61.8 in |
CDC 2000 charts draw the 3rd to the 97th percentile. Values computed with the LMS method from the published tables (retrieved 2026-10-05).