| Castel San Pietro Terme to Carpentras | 324.31 mi (521.92 km) |
| Castel San Pietro Terme to Carquefou | 659.44 mi (1,061.27 km) |
| Castel San Pietro Terme to Carqueiranne | 289.34 mi (465.65 km) |
| Castel San Pietro Terme to Carrieres-sous-Poissy | 550.25 mi (885.53 km) |
| Castel San Pietro Terme to Carrieres-sur-Seine | 539.22 mi (867.80 km) |
| Castel San Pietro Terme to Carros | 222.12 mi (357.46 km) |
| Castel San Pietro Terme to Carvin | 582.06 mi (936.74 km) |
| Castel San Pietro Terme to Castanet-Tolosan | 504.99 mi (812.70 km) |
| Castel San Pietro Terme to Castelginest | 506.13 mi (814.53 km) |
| Castel San Pietro Terme to Castelnau-le-Lez | 385.14 mi (619.82 km) |
| Castel San Pietro Terme to Castelnaudary | 485.23 mi (780.90 km) |
| Castel San Pietro Terme to Castelsarrasin | 519.00 mi (835.25 km) |
| Castel San Pietro Terme to Castres | 466.90 mi (751.40 km) |
| Castel San Pietro Terme to Caudebec-les-Elbeuf | 601.56 mi (968.12 km) |
| Castel San Pietro Terme to Caudry | 550.09 mi (885.28 km) |
