Bergstein gumboots offical size guide. The length in centimetres is the maximum foot length for the corresponding size.
| EU | AU | Length |
| 21 | 4.5 | 14.5 |
| 22 | 5.5 | 15 |
| 23 | 6 | 15.5 |
| 24 | 7 | 16 |
| 25 | 7.5 | 17 |
| 26 | 8.5 | 17.5 |
| 27 | 9.5 | 18 |
| 28 | 10 | 18.5 |
| 29 | 11 | 19 |
| 30 | 11.5 | 20 |
| 31 | 12 | 20.5 |
| 32 | 13 | 21 |
| 33 | W3 | 21.5 |
| 34 | W4 | 22.5 |
| 35 | W5 | 23 |
| 36 | W5.5 | 23.5 |
| 37 | W6 | 24 |
| 38 | W7 | 25 |
| 39 | W8 | 26 |
| 40 | W8.5 | 26.5 |
| 41 | W9 | 27 |
