| Portsmouth to Carpentras | 547.07 mi (880.43 km) |
| Portsmouth to Carquefou | 243.14 mi (391.29 km) |
| Portsmouth to Carqueiranne | 630.13 mi (1,014.10 km) |
| Portsmouth to Carrieres-sous-Poissy | 189.31 mi (304.67 km) |
| Portsmouth to Carrieres-sur-Seine | 199.36 mi (320.83 km) |
| Portsmouth to Carros | 621.09 mi (999.55 km) |
| Portsmouth to Carvin | 178.51 mi (287.29 km) |
| Portsmouth to Castanet-Tolosan | 518.05 mi (833.73 km) |
| Portsmouth to Castelginest | 505.34 mi (813.26 km) |
| Portsmouth to Castelnau-le-Lez | 547.55 mi (881.20 km) |
| Portsmouth to Castelnaudary | 536.66 mi (863.67 km) |
| Portsmouth to Castelsarrasin | 478.53 mi (770.12 km) |
| Portsmouth to Castres | 521.79 mi (839.75 km) |
| Portsmouth to Caudebec-les-Elbeuf | 140.89 mi (226.74 km) |
| Portsmouth to Caudry | 203.34 mi (327.25 km) |
