| Clay to Carpentras | 4,724.52 mi (7,603.38 km) |
| Clay to Carquefou | 4,345.15 mi (6,992.84 km) |
| Clay to Carqueiranne | 4,800.36 mi (7,725.43 km) |
| Clay to Carrieres-sous-Poissy | 4,453.24 mi (7,166.81 km) |
| Clay to Carrieres-sur-Seine | 4,464.71 mi (7,185.25 km) |
| Clay to Carros | 4,828.40 mi (7,770.56 km) |
| Clay to Carvin | 4,449.84 mi (7,161.32 km) |
| Clay to Castanet-Tolosan | 4,581.01 mi (7,372.42 km) |
| Clay to Castelginest | 4,572.90 mi (7,359.37 km) |
| Clay to Castelnau-le-Lez | 4,686.10 mi (7,541.55 km) |
| Clay to Castelnaudary | 4,607.50 mi (7,415.06 km) |
| Clay to Castelsarrasin | 4,548.21 mi (7,319.63 km) |
| Clay to Castres | 4,612.68 mi (7,423.40 km) |
| Clay to Caudebec-les-Elbeuf | 4,401.93 mi (7,084.23 km) |
| Clay to Caudry | 4,478.18 mi (7,206.94 km) |
