| Boise to Carpentras | 5,383.57 mi (8,664.02 km) |
| Boise to Carquefou | 5,006.93 mi (8,057.87 km) |
| Boise to Carqueiranne | 5,467.44 mi (8,799.00 km) |
| Boise to Carrieres-sous-Poissy | 5,033.73 mi (8,101.01 km) |
| Boise to Carrieres-sur-Seine | 5,043.21 mi (8,116.26 km) |
| Boise to Carros | 5,465.49 mi (8,795.86 km) |
| Boise to Carvin | 4,981.43 mi (8,016.84 km) |
| Boise to Castanet-Tolosan | 5,297.65 mi (8,525.74 km) |
| Boise to Castelginest | 5,286.25 mi (8,507.39 km) |
| Boise to Castelnau-le-Lez | 5,369.48 mi (8,641.34 km) |
| Boise to Castelnaudary | 5,322.96 mi (8,566.48 km) |
| Boise to Castelsarrasin | 5,257.56 mi (8,461.22 km) |
| Boise to Castres | 5,317.95 mi (8,558.41 km) |
| Boise to Caudebec-les-Elbeuf | 4,985.77 mi (8,023.83 km) |
| Boise to Caudry | 5,013.74 mi (8,068.84 km) |
