Weight for boys at 2 years
At 2 years, the median weight for boys on the CDC 2000 growth charts is 12.7 kg (27 lb 15 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 11.8 and 13.6 kg, a spread of 1.85 kg. The outer lines of the chart, the 3rd and 97th percentiles, sit at 10.4 and 15.6 kg.
Since 23 months, the median has risen by 0.72 kg in one month. By 3 years it reaches 14.3 kg.
For girls at 2 years the median is 12.1 kg, 0.62 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 2 years who weighs 13.3 kg is at about the 67th percentile, meaning that out of 100 boys this age, about 67 weigh less.
Percentiles at 2 years
Download CSV (all ages)| Percentile | z-score | Metric | Imperial |
|---|---|---|---|
| 3rd | −1.88 | 10.38 kg | 22 lb 14 oz |
| 5th | −1.64 | 10.64 kg | 23 lb 7 oz |
| 10th | −1.28 | 11.05 kg | 24 lb 6 oz |
| 25th | −0.67 | 11.79 kg | 26 lb 0 oz |
| 50th (median) | 0.00 | 12.67 kg | 27 lb 15 oz |
| 75th | +0.67 | 13.64 kg | 30 lb 1 oz |
| 90th | +1.28 | 14.58 kg | 32 lb 2 oz |
| 95th | +1.64 | 15.19 kg | 33 lb 8 oz |
| 97th | +1.88 | 15.60 kg | 34 lb 6 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).