Weight-for-length for boys at 105 cm
At a length of 105 cm, the median weight for boys on the WHO Child Growth Standards is 16.6 kg (36 lb 10 oz): half of boys of this length weigh less and half more. The middle half of boys, from the 25th to the 75th percentile, falls between 15.7 and 17.6 kg, a spread of 1.90 kg. The outer lines of the chart, the 2nd and 98th percentiles, sit at 14.1 and 19.8 kg.
At 103 cm the median weight is 16.0 kg, so 2 cm of extra length goes with about 0.61 kg more weight at the median. At 107 cm it is 17.3 kg. 105 cm is close to the median height of boys at 4 years (102.2 cm). Weight-for-length compares a child's weight with other children of the same length, whatever their age, which is why it can read differently from weight-for-age for a long or a short baby.
For girls at a length of 105 cm the median is 16.5 kg, 0.08 kg less than for boys, which is why the charts are drawn separately by sex.
CDC 2000 weight-for-length tables stop at 103.5 cm, so at 105 cm only the WHO standard applies.
Reading the table: a boy at a length of 105 cm who weighs 17.2 kg is at about the 65th percentile, meaning that out of 100 boys of that length, about 65 weigh less.
Percentiles at 105 cm
Download CSV (all lengths)| Percentile | z-score | Metric | Imperial |
|---|---|---|---|
| 2nd | −2.00 | 14.11 kg | 31 lb 2 oz |
| 5th | −1.64 | 14.52 kg | 32 lb 0 oz |
| 10th | −1.28 | 14.95 kg | 32 lb 15 oz |
| 25th | −0.67 | 15.71 kg | 34 lb 10 oz |
| 50th (median) | 0.00 | 16.63 kg | 36 lb 10 oz |
| 75th | +0.67 | 17.61 kg | 38 lb 13 oz |
| 90th | +1.28 | 18.57 kg | 40 lb 15 oz |
| 95th | +1.64 | 19.17 kg | 42 lb 4 oz |
| 98th | +2.00 | 19.79 kg | 43 lb 10 oz |
WHO charts label z = ±2 as the 2nd and 98th percentiles (exactly 2.3rd and 97.7th), the cutoffs CDC recommends on WHO charts. Values computed with the LMS method from the published tables (retrieved 2026-10-05).