UGG | M Size Chart
| U.S. Men | EU | UK | JP | IN | MX |
|---|---|---|---|---|---|
| 5 | 38 | 4 | 23 | 9.06 | 23 |
| 6 | 39 | 5 | 24 | 9.45 | 24 |
| 6.5 | 39.5 | 5.5 | 24.5 | 9.65 | 24.5 |
| 7 | 40 | 6 | 25 | 9.84 | 25 |
| 7.5 | 40.5 | 6.5 | 25.5 | 10.04 | 25.5 |
| 8 | 41 | 7 | 26 | 10.25 | 26 |
| 8.5 | 41.5 | 7.5 | 26.5 | 10.43 | 26.5 |
| 9 | 42 | 8 | 27 | 10.63 | 27 |
| 9.5 | 42.5 | 8.5 | 27.5 | 10.83 | 27.5 |
| 10 | 43 | 9 | 28 | 11.02 | 28 |
| 10.5 | 43.5 | 9.5 | 28.5 | 11.22 | 28.5 |
| 11 | 44 | 10 | 29 | 11.42 | 29 |
| 11.5 | 44.5 | 10.5 | 29.5 | 11.61 | 29.5 |
| 12 | 45 | 11 | 30 | 11.81 | 30 |
| 13 | 46 | 12 | 31 | 12.2 | 31 |
| 14 | 48.5 | 13 | 32 | 12.6 | 32 |
| 15 | 49.5 | 14 | 33 | 12.99 | 33 |
| 16 | 50.5 | 15 | 34 | 13.39 | 34 |
| 17 | 51 | 16 | 35 | 13.78 | 35 |
| 18 | 52 | 17 | 36 | 14.17 | 36 |
