| Clay to Busto Arsizio | 4,840.55 mi (7,790.11 km) |
| Clay to Busto Garolfo | 4,844.14 mi (7,795.88 km) |
| Clay to Cabras | 5,016.65 mi (8,073.52 km) |
| Clay to Cadelbosco di Sopra | 4,943.29 mi (7,955.46 km) |
| Clay to Cadoneghe | 4,976.23 mi (8,008.47 km) |
| Clay to Cagli | 5,073.43 mi (8,164.90 km) |
| Clay to Cagliari | 5,067.66 mi (8,155.61 km) |
| Clay to Cairo Montenotte | 4,855.01 mi (7,813.38 km) |
| Clay to Caivano | 5,239.86 mi (8,432.73 km) |
| Clay to Calcinaia | 4,981.08 mi (8,016.27 km) |
| Clay to Calcinato | 4,911.99 mi (7,905.08 km) |
| Clay to Calderara di Reno | 4,978.59 mi (8,012.27 km) |
| Clay to Caldogno | 4,952.65 mi (7,970.51 km) |
| Clay to Calenzano | 4,998.52 mi (8,044.34 km) |
| Clay to Calolziocorte | 4,859.06 mi (7,819.91 km) |
