Weight for boys at 17 years
At 17 years, the median weight for boys on the CDC 2000 growth charts is 64.6 kg (142 lb 6 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 58.1 and 72.7 kg, a spread of 14.6 kg. The outer lines of the chart, the 3rd and 97th percentiles, sit at 49.2 and 93.6 kg.
Since 16 years, the median has risen by 3.65 kg over 1 year. By 18 years it reaches 67.2 kg.
For girls at 17 years the median is 55.1 kg, 9.43 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 17 years who weighs 69.4 kg is at about the 66th percentile, meaning that out of 100 boys this age, about 66 weigh less.
Percentiles at 17 years
Download CSV (all ages)| Percentile | z-score | Metric | Imperial |
|---|---|---|---|
| 3rd | −1.88 | 49.16 kg | 108 lb 6 oz |
| 5th | −1.64 | 50.68 kg | 111 lb 12 oz |
| 10th | −1.28 | 53.22 kg | 117 lb 5 oz |
| 25th | −0.67 | 58.06 kg | 128 lb 0 oz |
| 50th (median) | 0.00 | 64.57 kg | 142 lb 6 oz |
| 75th | +0.67 | 72.69 kg | 160 lb 4 oz |
| 90th | +1.28 | 81.92 kg | 180 lb 10 oz |
| 95th | +1.64 | 88.63 kg | 195 lb 6 oz |
| 97th | +1.88 | 93.60 kg | 206 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).