| Portimao to Carpentras | 856.54 mi (1,378.48 km) |
| Portimao to Carquefou | 788.36 mi (1,268.74 km) |
| Portimao to Carqueiranne | 873.23 mi (1,405.33 km) |
| Portimao to Carrieres-sous-Poissy | 973.22 mi (1,566.25 km) |
| Portimao to Carrieres-sur-Seine | 978.09 mi (1,574.08 km) |
| Portimao to Carros | 943.40 mi (1,518.26 km) |
| Portimao to Carvin | 1,083.50 mi (1,743.73 km) |
| Portimao to Castanet-Tolosan | 687.40 mi (1,106.26 km) |
| Portimao to Castelginest | 692.18 mi (1,113.96 km) |
| Portimao to Castelnau-le-Lez | 792.56 mi (1,275.51 km) |
| Portimao to Castelnaudary | 698.17 mi (1,123.60 km) |
| Portimao to Castelsarrasin | 694.52 mi (1,117.72 km) |
| Portimao to Castres | 721.43 mi (1,161.02 km) |
| Portimao to Caudebec-les-Elbeuf | 965.58 mi (1,553.96 km) |
| Portimao to Caudry | 1,075.23 mi (1,730.42 km) |
