Weight-for-length chart for boys
The median and outer lines at each length. Open a row for the full percentile table, a chart and a CSV.
WHO 2006 · CDC 2000 · retrieved 2026-10-05Same chart for girls
| Length | Standard | Lower line | Median | Upper line | Median (imperial) |
|---|---|---|---|---|---|
| 45 cm | WHO | 2.04 kg (2nd) | 2.44 kg | 2.95 kg (98th) | 5 lb 6 oz |
| 47 cm | WHO | 2.33 kg (2nd) | 2.78 kg | 3.35 kg (98th) | 6 lb 2 oz |
| 49 cm | WHO | 2.63 kg (2nd) | 3.13 kg | 3.77 kg (98th) | 6 lb 14 oz |
| 51 cm | WHO | 2.98 kg (2nd) | 3.54 kg | 4.25 kg (98th) | 7 lb 13 oz |
| 53 cm | WHO | 3.38 kg (2nd) | 4.01 kg | 4.80 kg (98th) | 8 lb 13 oz |
| 55 cm | WHO | 3.85 kg (2nd) | 4.55 kg | 5.43 kg (98th) | 10 lb 0 oz |
| 57 cm | WHO | 4.35 kg (2nd) | 5.13 kg | 6.11 kg (98th) | 11 lb 5 oz |
| 59 cm | WHO | 4.85 kg (2nd) | 5.71 kg | 6.78 kg (98th) | 12 lb 9 oz |
| 61 cm | WHO | 5.33 kg (2nd) | 6.26 kg | 7.43 kg (98th) | 13 lb 13 oz |
| 63 cm | WHO | 5.77 kg (2nd) | 6.78 kg | 8.04 kg (98th) | 14 lb 15 oz |
| 65 cm | WHO | 6.19 kg (2nd) | 7.27 kg | 8.61 kg (98th) | 16 lb 0 oz |
| 67 cm | WHO | 6.60 kg (2nd) | 7.74 kg | 9.16 kg (98th) | 17 lb 1 oz |
| 69 cm | WHO | 6.99 kg (2nd) | 8.20 kg | 9.71 kg (98th) | 18 lb 1 oz |
| 71 cm | WHO | 7.37 kg (2nd) | 8.65 kg | 10.25 kg (98th) | 19 lb 1 oz |
| 73 cm | WHO | 7.74 kg (2nd) | 9.09 kg | 10.77 kg (98th) | 20 lb 1 oz |
| 75 cm | WHO | 8.09 kg (2nd) | 9.50 kg | 11.27 kg (98th) | 20 lb 15 oz |
| 77 cm | WHO | 8.42 kg (2nd) | 9.90 kg | 11.75 kg (98th) | 21 lb 13 oz |
| 79 cm | WHO | 8.73 kg (2nd) | 10.26 kg | 12.18 kg (98th) | 22 lb 10 oz |
| 81 cm | WHO | 9.05 kg (2nd) | 10.64 kg | 12.62 kg (98th) | 23 lb 7 oz |
| 83 cm | WHO | 9.41 kg (2nd) | 11.04 kg | 13.09 kg (98th) | 24 lb 5 oz |
| 85 cm | WHO | 9.81 kg (2nd) | 11.50 kg | 13.61 kg (98th) | 25 lb 6 oz |
| 87 cm | WHO | 10.24 kg (2nd) | 11.99 kg | 14.17 kg (98th) | 26 lb 7 oz |
| 89 cm | WHO | 10.67 kg (2nd) | 12.48 kg | 14.73 kg (98th) | 27 lb 8 oz |
| 91 cm | WHO | 11.08 kg (2nd) | 12.96 kg | 15.29 kg (98th) | 28 lb 9 oz |
| 93 cm | WHO | 11.48 kg (2nd) | 13.42 kg | 15.84 kg (98th) | 29 lb 10 oz |
| 95 cm | WHO | 11.88 kg (2nd) | 13.89 kg | 16.40 kg (98th) | 30 lb 10 oz |
| 97 cm | WHO | 12.28 kg (2nd) | 14.38 kg | 16.99 kg (98th) | 31 lb 11 oz |
| 99 cm | WHO | 12.71 kg (2nd) | 14.89 kg | 17.62 kg (98th) | 32 lb 13 oz |
| 101 cm | WHO | 13.16 kg (2nd) | 15.44 kg | 18.30 kg (98th) | 34 lb 1 oz |
| 103 cm | WHO | 13.62 kg (2nd) | 16.02 kg | 19.03 kg (98th) | 35 lb 5 oz |
| 105 cm | WHO | 14.11 kg (2nd) | 16.63 kg | 19.79 kg (98th) | 36 lb 10 oz |
| 107 cm | WHO | 14.61 kg (2nd) | 17.26 kg | 20.60 kg (98th) | 38 lb 1 oz |
| 109 cm | WHO | 15.14 kg (2nd) | 17.92 kg | 21.45 kg (98th) | 39 lb 8 oz |
| 110 cm | WHO | 15.41 kg (2nd) | 18.27 kg | 21.89 kg (98th) | 40 lb 4 oz |