| Idrija to Carpentras | 458.31 mi (737.58 km) |
| Idrija to Carquefou | 740.28 mi (1,191.37 km) |
| Idrija to Carqueiranne | 439.88 mi (707.92 km) |
| Idrija to Carrieres-sous-Poissy | 594.94 mi (957.46 km) |
| Idrija to Carrieres-sur-Seine | 583.31 mi (938.75 km) |
| Idrija to Carros | 368.16 mi (592.49 km) |
| Idrija to Carvin | 595.46 mi (958.30 km) |
| Idrija to Castanet-Tolosan | 637.50 mi (1,025.96 km) |
| Idrija to Castelginest | 636.49 mi (1,024.34 km) |
| Idrija to Castelnau-le-Lez | 522.04 mi (840.14 km) |
| Idrija to Castelnaudary | 620.95 mi (999.32 km) |
| Idrija to Castelsarrasin | 644.65 mi (1,037.46 km) |
| Idrija to Castres | 600.14 mi (965.83 km) |
| Idrija to Caudebec-les-Elbeuf | 645.44 mi (1,038.74 km) |
| Idrija to Caudry | 566.17 mi (911.16 km) |
