| Grottammare to Carpentras | 447.60 mi (720.34 km) |
| Grottammare to Carquefou | 803.77 mi (1,293.54 km) |
| Grottammare to Carqueiranne | 393.41 mi (633.13 km) |
| Grottammare to Carrieres-sous-Poissy | 700.18 mi (1,126.83 km) |
| Grottammare to Carrieres-sur-Seine | 689.18 mi (1,109.13 km) |
| Grottammare to Carros | 339.31 mi (546.07 km) |
| Grottammare to Carvin | 730.35 mi (1,175.39 km) |
| Grottammare to Castanet-Tolosan | 622.87 mi (1,002.41 km) |
| Grottammare to Castelginest | 626.05 mi (1,007.54 km) |
| Grottammare to Castelnau-le-Lez | 502.60 mi (808.86 km) |
| Grottammare to Castelnaudary | 600.34 mi (966.15 km) |
| Grottammare to Castelsarrasin | 642.75 mi (1,034.40 km) |
| Grottammare to Castres | 585.18 mi (941.76 km) |
| Grottammare to Caudebec-les-Elbeuf | 751.47 mi (1,209.38 km) |
| Grottammare to Caudry | 698.57 mi (1,124.23 km) |
