| Opole to Carpentras | 754.72 mi (1,214.61 km) |
| Opole to Carquefou | 908.20 mi (1,461.61 km) |
| Opole to Carqueiranne | 764.71 mi (1,230.68 km) |
| Opole to Carrieres-sous-Poissy | 717.18 mi (1,154.19 km) |
| Opole to Carrieres-sur-Seine | 706.93 mi (1,137.70 km) |
| Opole to Carros | 692.20 mi (1,113.99 km) |
| Opole to Carvin | 656.02 mi (1,055.76 km) |
| Opole to Castanet-Tolosan | 914.43 mi (1,471.63 km) |
| Opole to Castelginest | 909.41 mi (1,463.56 km) |
| Opole to Castelnau-le-Lez | 816.69 mi (1,314.33 km) |
| Opole to Castelnaudary | 905.26 mi (1,456.88 km) |
| Opole to Castelsarrasin | 907.99 mi (1,461.26 km) |
| Opole to Castres | 881.43 mi (1,418.52 km) |
| Opole to Caudebec-les-Elbeuf | 755.91 mi (1,216.52 km) |
| Opole to Caudry | 639.68 mi (1,029.46 km) |
