| Le Portel to Carpentras | 487.31 mi (784.25 km) |
| Le Portel to Carquefou | 273.48 mi (440.12 km) |
| Le Portel to Carqueiranne | 566.94 mi (912.40 km) |
| Le Portel to Carrieres-sous-Poissy | 123.28 mi (198.41 km) |
| Le Portel to Carrieres-sur-Seine | 128.12 mi (206.19 km) |
| Le Portel to Carros | 546.47 mi (879.46 km) |
| Le Portel to Carvin | 62.50 mi (100.58 km) |
| Le Portel to Castanet-Tolosan | 496.87 mi (799.63 km) |
| Le Portel to Castelginest | 484.60 mi (779.89 km) |
| Le Portel to Castelnau-le-Lez | 500.50 mi (805.48 km) |
| Le Portel to Castelnaudary | 510.82 mi (822.08 km) |
| Le Portel to Castelsarrasin | 461.14 mi (742.13 km) |
| Le Portel to Castres | 492.05 mi (791.87 km) |
| Le Portel to Caudebec-les-Elbeuf | 101.53 mi (163.39 km) |
| Le Portel to Caudry | 90.37 mi (145.43 km) |
