| Portes-les-Valence to Busto Garolfo | 200.67 mi (322.95 km) |
| Portes-les-Valence to Cabras | 388.88 mi (625.84 km) |
| Portes-les-Valence to Cadelbosco di Sopra | 280.55 mi (451.50 km) |
| Portes-les-Valence to Cadoneghe | 345.99 mi (556.81 km) |
| Portes-les-Valence to Cagli | 395.52 mi (636.52 km) |
| Portes-les-Valence to Cagliari | 446.33 mi (718.31 km) |
| Portes-les-Valence to Cairo Montenotte | 169.85 mi (273.35 km) |
| Portes-les-Valence to Caivano | 548.03 mi (881.96 km) |
| Portes-les-Valence to Calcinaia | 295.55 mi (475.64 km) |
| Portes-les-Valence to Calcinato | 272.74 mi (438.94 km) |
| Portes-les-Valence to Calderara di Reno | 314.36 mi (505.92 km) |
| Portes-les-Valence to Caldogno | 325.79 mi (524.30 km) |
| Portes-les-Valence to Calenzano | 318.28 mi (512.22 km) |
| Portes-les-Valence to Calolziocorte | 230.36 mi (370.73 km) |
| Portes-les-Valence to Caltagirone | 727.27 mi (1,170.43 km) |
