| Altena to Carpentras | 515.04 mi (828.87 km) |
| Altena to Carquefou | 496.25 mi (798.64 km) |
| Altena to Carqueiranne | 571.78 mi (920.20 km) |
| Altena to Carrieres-sous-Poissy | 297.48 mi (478.75 km) |
| Altena to Carrieres-sur-Seine | 289.79 mi (466.37 km) |
| Altena to Carros | 520.57 mi (837.77 km) |
| Altena to Carvin | 212.59 mi (342.13 km) |
| Altena to Castanet-Tolosan | 609.80 mi (981.38 km) |
| Altena to Castelginest | 600.23 mi (965.98 km) |
| Altena to Castelnau-le-Lez | 557.71 mi (897.55 km) |
| Altena to Castelnaudary | 612.55 mi (985.81 km) |
| Altena to Castelsarrasin | 586.64 mi (944.10 km) |
| Altena to Castres | 588.75 mi (947.51 km) |
| Altena to Caudebec-les-Elbeuf | 324.68 mi (522.53 km) |
| Altena to Caudry | 203.05 mi (326.78 km) |
