| French size | Inside length (mm) | UK size | US size (man) | US size (woman) |
|---|---|---|---|---|
| 30 | 200 | - | - | - |
| 31 | 205 | - | - | - |
| 32 | 210 | - | - | - |
| 33 | 215 | - | - | - |
| 34 | 220 | - | - | - |
| 35 | 225 | 2½ | - | 4 |
| 36 | 230 | 3½ | - | 5 |
| 37 | 235 | 4 | - | 5½ |
| 38 | 240 | 5 | - | 6½ |
| 39 | 245 | 5½ | 6 | 7½ |
| 40 | 250 | 6½ | 7 | 8 |
| 41 | 255 | 7½ | 8 | 9 |
| 42 | 260 | 8 | 8½ | 9½ |
| 43 | 265 | 9 | 9½ | 10½ |
| 44 | 270 | 9½ | 10 | - |
| 45 | 275 | 10½ | 11 | - |
| 46 | 280 | 11 | 11½ | - |
| 47 | 285 | 12 | 12½ | - |
