Weight for boys at 5 years
At 5 years, the median weight for boys on the CDC 2000 growth charts is 18.4 kg (40 lb 9 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 16.9 and 20.2 kg, a spread of 3.24 kg. The outer lines of the chart, the 3rd and 97th percentiles, sit at 14.8 and 24.3 kg.
Since 4 years, the median has risen by 2.16 kg over 1 year. By 6 years it reaches 20.7 kg.
For girls at 5 years the median is 17.9 kg, 0.46 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 5 years who weighs 19.4 kg is at about the 66th percentile, meaning that out of 100 boys this age, about 66 weigh less.
Percentiles at 5 years
Download CSV (all ages)| Percentile | z-score | Metric | Imperial |
|---|---|---|---|
| 3rd | −1.88 | 14.79 kg | 32 lb 10 oz |
| 5th | −1.64 | 15.16 kg | 33 lb 7 oz |
| 10th | −1.28 | 15.77 kg | 34 lb 12 oz |
| 25th | −0.67 | 16.92 kg | 37 lb 5 oz |
| 50th (median) | 0.00 | 18.39 kg | 40 lb 9 oz |
| 75th | +0.67 | 20.15 kg | 44 lb 7 oz |
| 90th | +1.28 | 22.05 kg | 48 lb 10 oz |
| 95th | +1.64 | 23.37 kg | 51 lb 8 oz |
| 97th | +1.88 | 24.31 kg | 53 lb 10 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).