Lucchese boots have a fit that is designed to be snug and comfortable at the same time. To get a better idea of the right fit for you, consult the international conversion charts as well as the foot measurements in inches and meters associated with each standard size. If you are between two sizes, go for the larger one.
| US SIZES | EURO SIZES | UK SIZES | INCHES | CM |
| 4 | 35 | 2 | 8.1875 | 20.8 |
| 4.5 | 35 | 2.5 | 8.375 | 21.3 |
| 5 | 35-36 | 3 | 8.5 | 21.6 |
| 5.5 | 36 | 3.5 | 8.75 | 22.2 |
| 6 | 36-37 | 4 | 8.875 | 22.5 |
| 6.5 | 37 | 4.5 | 9.0625 | 23 |
| 7 | 37-38 | 5 | 9.25 | 23.5 |
| 7.5 | 38 | 5.5 | 9.375 | 23.8 |
| 8 | 38-39 | 6 | 9.5 | 24.1 |
| 8.5 | 39 | 6.5 | 9.6875 | 24.6 |
| 9 | 39-40 | 7 | 9.875 | 25.1 |
| 9.5 | 40 | 7.5 | 10 | 25.4 |
| 10 | 40-41 | 8 | 10.1875 | 25.9 |
| 10.5 | 41 | 8.5 | 10.3125 | 26.2 |
| 11 | 41-42 | 9 | 10.5 | 26.7 |
| 11.5 | 42 | 9.5 | 10.6875 | 27.1 |
| 12 | 42-43 | 10 | 10.875 | 27.6 |
| US SIZES | EURO SIZES | UK SIZES | INCHES | CM |
| 6 | 39 | 5.5 | 9.25 | 23.5 |
| 6.5 | 39 | 6 | 9.5 | 24.1 |
| 7 | 40 | 6.5 | 9.625 | 24.4 |
| 7.5 | 40-41 | 7 | 9.75 | 24.8 |
| 8 | 41 | 7.5 | 9.375 | 25.4 |
| 8.5 | 41-42 | 8 | 10.125 | 25.7 |
| 9 | 42 | 8.5 | 10.25 | 26 |
| 9.5 | 42-43 | 9 | 10.4375 | 26.7 |
| 10 | 43 | 9.5 | 10.5625 | 27 |
| 10.5 | 43-44 | 10 | 10.75 | 27.3 |
| 11 | 44 | 10.5 | 10.9375 | 27.9 |
| 11.5 | 44-45 | 11 | 11.125 | 28.3 |
| 12 | 45 | 11.5 | 11.25 | 28.6 |
| 13 | 46 | 12.5 | 11.5625 | 29.4 |
| 14 | 47 | 13.5 | 11.875 | 30.2 |
| 15 | 48 | 14.5 | 12.1875 | 31 |
| 16 | 49 | 15.5 | 12.5 | 31.8 |
