| Key West to Carpentras | 4,906.94 mi (7,896.95 km) |
| Key West to Carquefou | 4,547.79 mi (7,318.97 km) |
| Key West to Carqueiranne | 4,975.11 mi (8,006.67 km) |
| Key West to Carrieres-sous-Poissy | 4,684.55 mi (7,539.05 km) |
| Key West to Carrieres-sur-Seine | 4,696.19 mi (7,557.79 km) |
| Key West to Carros | 5,014.75 mi (8,070.45 km) |
| Key West to Carvin | 4,701.66 mi (7,566.59 km) |
| Key West to Castanet-Tolosan | 4,745.78 mi (7,637.60 km) |
| Key West to Castelginest | 4,739.61 mi (7,627.67 km) |
| Key West to Castelnau-le-Lez | 4,859.90 mi (7,821.26 km) |
| Key West to Castelnaudary | 4,771.33 mi (7,678.71 km) |
| Key West to Castelsarrasin | 4,718.11 mi (7,593.06 km) |
| Key West to Castres | 4,780.80 mi (7,693.95 km) |
| Key West to Caudebec-les-Elbeuf | 4,634.75 mi (7,458.92 km) |
| Key West to Caudry | 4,726.78 mi (7,607.01 km) |
