| Siena to Chateaubriant | 685.05 mi (1,102.48 km) |
| Siena to Chateaudun | 582.73 mi (937.82 km) |
| Siena to Chateauneuf-les-Martigues | 309.82 mi (498.60 km) |
| Siena to Chateaurenard | 326.30 mi (525.12 km) |
| Siena to Chateauroux | 528.21 mi (850.08 km) |
| Siena to Chatellerault | 578.54 mi (931.06 km) |
| Siena to Chatenay-Malabry | 573.90 mi (923.60 km) |
| Siena to Chatillon | 574.94 mi (925.27 km) |
| Siena to Chatou | 583.51 mi (939.06 km) |
| Siena to Chaumont | 445.73 mi (717.33 km) |
| Siena to Chauny | 581.01 mi (935.05 km) |
| Siena to Chaville | 578.95 mi (931.74 km) |
| Siena to Checy | 549.12 mi (883.73 km) |
| Siena to Chelles | 567.51 mi (913.32 km) |
| Siena to Chennevieres-sur-Marne | 566.15 mi (911.13 km) |
