Nike Socks Size Chart
| Size | XS | S | M | L | XL | 2XL |
| USM | 6 - 8 | 8 - 12 | 12 - 15 | 15 - 18 | ||
| USW | 4 - 6 | 6 - 10 | 10 - 13 | |||
| Kids' (US) | 13C - 3Y | 3Y - 5Y | 5Y - 7Y | |||
| UK | 2 - 5 | 5 - 8 | 8 - 11 | 11 - 14.5 | 14.5 - 17 | |
| EU | 31 - 35 | 34 - 38 | 38 - 42 | 42 - 46 | 46 - 50 | 50 - 53 |
| Size | 1 | 2 | 3 | 4 | 5 | 6 |
| USM | 4 - 5.5 | 6 - 7.5 | 8 - 9.5 | 10 - 11.5 | 12 - 13.5 | 14 - 16 |
| USW | 5.5 - 7 | 7.5 - 9 | 9.5 - 11 | 11.5 - 13 | ||
| Kids' (US) | 4Y - 5.5Y | 6Y - 7.5Y | ||||
| UK | 3.5 - 5 | 5.5 - 6.5 | 7 - 8.5 | 9 - 10.5 | 11 - 12.5 | 13 - 15 |
| EU | 36 - 38 | 38.5 - 40.5 | 41 - 43 | 44 - 45.5 | 46 - 48 | 48.5 - 50.5 |