| Portet-sur-Garonne to Corbetta | 393.61 mi (633.46 km) |
| Portet-sur-Garonne to Corciano | 546.97 mi (880.27 km) |
| Portet-sur-Garonne to Cordenons | 579.08 mi (931.94 km) |
| Portet-sur-Garonne to Cori | 599.05 mi (964.07 km) |
| Portet-sur-Garonne to Coriano | 559.16 mi (899.88 km) |
| Portet-sur-Garonne to Corigliano Calabro | 825.44 mi (1,328.41 km) |
| Portet-sur-Garonne to Corleone | 736.40 mi (1,185.12 km) |
| Portet-sur-Garonne to Cormano | 406.88 mi (654.81 km) |
| Portet-sur-Garonne to Cornaredo | 399.69 mi (643.24 km) |
| Portet-sur-Garonne to Cornate d'Adda | 422.79 mi (680.41 km) |
| Portet-sur-Garonne to Cornedo Vicentino | 510.02 mi (820.80 km) |
| Portet-sur-Garonne to Correggio | 472.51 mi (760.43 km) |
| Portet-sur-Garonne to Corridonia | 607.86 mi (978.26 km) |
| Portet-sur-Garonne to Corsico | 402.22 mi (647.31 km) |
| Portet-sur-Garonne to Cortona | 531.16 mi (854.81 km) |
