Weight for boys at 14 years
At 14 years, the median weight for boys on the CDC 2000 growth charts is 51.0 kg (112 lb 7 oz): half of boys this age weigh less and half more. The middle half of boys, from the 25th to the 75th percentile, falls between 45.1 and 58.3 kg, a spread of 13.3 kg. The outer lines of the chart, the 3rd and 97th percentiles, sit at 36.9 and 76.7 kg.
Since 13 years, the median has risen by 5.41 kg over 1 year. By 15 years it reaches 56.3 kg.
For girls at 14 years the median is 49.4 kg, 1.64 kg less 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 14 years who weighs 55.4 kg is at about the 66th percentile, meaning that out of 100 boys this age, about 66 weigh less.
Percentiles at 14 years
Download CSV (all ages)| Percentile | z-score | Metric | Imperial |
|---|---|---|---|
| 3rd | −1.88 | 36.89 kg | 81 lb 5 oz |
| 5th | −1.64 | 38.29 kg | 84 lb 7 oz |
| 10th | −1.28 | 40.62 kg | 89 lb 9 oz |
| 25th | −0.67 | 45.06 kg | 99 lb 5 oz |
| 50th (median) | 0.00 | 51.00 kg | 112 lb 7 oz |
| 75th | +0.67 | 58.35 kg | 128 lb 10 oz |
| 90th | +1.28 | 66.56 kg | 146 lb 12 oz |
| 95th | +1.64 | 72.42 kg | 159 lb 11 oz |
| 97th | +1.88 | 76.69 kg | 169 lb 1 oz |
CDC 2000 charts draw the 3rd to the 97th percentile. Values computed with the LMS method from the published tables (retrieved 2026-10-05).