| Alpena to Carpentras | 4,119.45 mi (6,629.62 km) |
| Alpena to Carquefou | 3,732.93 mi (6,007.57 km) |
| Alpena to Carqueiranne | 4,199.77 mi (6,758.88 km) |
| Alpena to Carrieres-sous-Poissy | 3,815.05 mi (6,139.73 km) |
| Alpena to Carrieres-sur-Seine | 3,826.10 mi (6,157.52 km) |
| Alpena to Carros | 4,217.60 mi (6,787.57 km) |
| Alpena to Carvin | 3,795.70 mi (6,108.59 km) |
| Alpena to Castanet-Tolosan | 3,994.46 mi (6,428.45 km) |
| Alpena to Castelginest | 3,984.91 mi (6,413.09 km) |
| Alpena to Castelnau-le-Lez | 4,089.16 mi (6,580.87 km) |
| Alpena to Castelnaudary | 4,021.05 mi (6,471.26 km) |
| Alpena to Castelsarrasin | 3,958.16 mi (6,370.05 km) |
| Alpena to Castres | 4,022.44 mi (6,473.49 km) |
| Alpena to Caudebec-les-Elbeuf | 3,763.73 mi (6,057.14 km) |
| Alpena to Caudry | 3,825.91 mi (6,157.21 km) |
