| Portes-les-Valence to Corbetta | 201.01 mi (323.49 km) |
| Portes-les-Valence to Corciano | 387.08 mi (622.94 km) |
| Portes-les-Valence to Cordenons | 386.87 mi (622.61 km) |
| Portes-les-Valence to Cori | 461.52 mi (742.75 km) |
| Portes-les-Valence to Coriano | 386.11 mi (621.38 km) |
| Portes-les-Valence to Corigliano Calabro | 697.07 mi (1,121.82 km) |
| Portes-les-Valence to Corleone | 653.98 mi (1,052.47 km) |
| Portes-les-Valence to Cormano | 213.97 mi (344.36 km) |
| Portes-les-Valence to Cornaredo | 206.98 mi (333.10 km) |
| Portes-les-Valence to Cornate d'Adda | 229.56 mi (369.45 km) |
| Portes-les-Valence to Cornedo Vicentino | 318.99 mi (513.37 km) |
| Portes-les-Valence to Correggio | 289.46 mi (465.83 km) |
| Portes-les-Valence to Corridonia | 443.17 mi (713.21 km) |
| Portes-les-Valence to Corsico | 210.18 mi (338.25 km) |
| Portes-les-Valence to Cortona | 369.73 mi (595.02 km) |
