| Widnes to Carpentras | 733.34 mi (1,180.20 km) |
| Widnes to Carquefou | 422.64 mi (680.17 km) |
| Widnes to Carqueiranne | 815.57 mi (1,312.54 km) |
| Widnes to Carrieres-sous-Poissy | 368.24 mi (592.62 km) |
| Widnes to Carrieres-sur-Seine | 376.54 mi (605.98 km) |
| Widnes to Carros | 801.40 mi (1,289.72 km) |
| Widnes to Carvin | 312.90 mi (503.57 km) |
| Widnes to Castanet-Tolosan | 707.11 mi (1,137.98 km) |
| Widnes to Castelginest | 694.38 mi (1,117.50 km) |
| Widnes to Castelnau-le-Lez | 736.61 mi (1,185.47 km) |
| Widnes to Castelnaudary | 726.18 mi (1,168.67 km) |
| Widnes to Castelsarrasin | 667.22 mi (1,073.79 km) |
| Widnes to Castres | 711.60 mi (1,145.22 km) |
| Widnes to Caudebec-les-Elbeuf | 325.10 mi (523.20 km) |
| Widnes to Caudry | 344.81 mi (554.92 km) |
