| Europe | Mondopoint (Comfort Fit) |
Foot Length (cm) |
Men / Unisex (US) | Women (US) | UK |
| 25 | 15 | - | 8 (Kids') | - | 7 |
| 25 | 15.5 | - | 8 (Kids') | - | 7 |
| 26 | 16 | - | 9 (Kids') | - | 8 |
| 26 | 16.5 | - | 9 (Kids') | - | 8 |
| 27 | 17 | - | 10 (Kids') | - | 9 |
| 28 | 17.5 | - | 11 (Kids') | - | 10 |
| 29 | 18.5 | - | 12 (Kids') | - | 11 |
| 30.5 | 19.5 | - | 13 (Kids') | - | 12 |
| 31 | 20 | - | 13.5 (Kids') | - | 13 |
| 32 | 20.5 | - | 1 | - | 13.5 |
| 33 | 21 | - | 2 | - | 1 |
| 34 | 21.5 | - | 3 | - | 2 |
| 35 | 22 | 21 | 4 | 5 | 3 |
| 36 | 22.5 | 21.5 | 4.5 | 5.5 | 3.5 |
| 36.5 | 23 | 22 | 5 | 6 | 4 |
| 37 | 23.5 | 22.5 | 5.5 | 6.5 | 4.5 |
| 38 | 24 | 23 | 6 | 7 | 5 |
| 38.5 | 24.5 | 23.5 | 6.5 | 7.5 | 5.5 |
| 39 | 25 | 24 | 7 | 8 | 6 |
| 40 | 25.5 | 24.5 | 7.5 | 8.5 | 6.5 |
| 40.5 | 26 | 25 | 8 | 9 | 7 |
| 41 | 26.5 | 25.5 | 8.5 | 9.5 | 7.5 |
| 42 | 27 | 26 | 9 | 10 | 8 |
| 42.5 | 27.5 | 26.5 | 9.5 | 10.5 | 8.5 |
| 43 | 28 | 27 | 10 | 11 | 9 |
| 44 | 28.5 | 27.5 | 10.5 | 11.5 | 9.5 |
| 44.5 | 29 | 28 | 11 | 12 | 10 |
| 45 | 29.5 | 28.5 | 11.5 | - | 10.5 |
| 45.5 | 30 | 29 | 12 | - | 11 |
| 46 | 30.5 | 29.5 | 12.5 | - | 11.5 |
| 47 | 31 | 30 | 13 | - | 12 |
| 47.5 | 31.5 | 30.5 | 13.5 | - | 12.5 |
| 48 | 32 | 31 | 14 | - | 13 |
| 48.5 | 32.5 | 31.5 | 14.5 | - | 13.5 |
| 49 | 33 | 32 | 15 | - | 14 |
| 50 | 33.5 | 32.5 | 15.5 | - | 14.5 |
| 51 | 34 | 33 | 16 | - | 15 |
Cross country ski boots mostly come in Euro sizes, making it difficult for non-Europeans to dial in the right fit. Visiting a bootfitter is the best way to ensure a proper fit, and a proper fit is paramount in cross country skiing. It's always better to size down than size up — a boot with too much room can cause blisters.
