| Clay to Corato | 5,323.91 mi (8,568.01 km) |
| Clay to Corbetta | 4,848.07 mi (7,802.22 km) |
| Clay to Corciano | 5,072.46 mi (8,163.34 km) |
| Clay to Cordenons | 4,989.60 mi (8,029.98 km) |
| Clay to Cori | 5,153.35 mi (8,293.52 km) |
| Clay to Coriano | 5,056.47 mi (8,137.61 km) |
| Clay to Corigliano Calabro | 5,388.73 mi (8,672.32 km) |
| Clay to Corleone | 5,311.66 mi (8,548.29 km) |
| Clay to Cormano | 4,855.99 mi (7,814.96 km) |
| Clay to Cornaredo | 4,851.95 mi (7,808.46 km) |
| Clay to Cornate d'Adda | 4,865.43 mi (7,830.16 km) |
| Clay to Cornedo Vicentino | 4,946.02 mi (7,959.84 km) |
| Clay to Correggio | 4,950.94 mi (7,967.78 km) |
| Clay to Corridonia | 5,121.37 mi (8,242.05 km) |
| Clay to Corsico | 4,857.70 mi (7,817.71 km) |
