| Clay to Cassina de' Pecchi | 4,865.59 mi (7,830.41 km) |
| Clay to Cassino | 5,199.02 mi (8,367.01 km) |
| Clay to Castagneto Carducci | 4,998.15 mi (8,043.74 km) |
| Clay to Castano Primo | 4,838.95 mi (7,787.54 km) |
| Clay to Castel Bolognese | 5,010.02 mi (8,062.85 km) |
| Clay to Castel Gandolfo | 5,138.18 mi (8,269.11 km) |
| Clay to Castel Goffredo | 4,919.95 mi (7,917.89 km) |
| Clay to Castel Maggiore | 4,982.86 mi (8,019.14 km) |
| Clay to Castel Mella | 4,899.38 mi (7,884.80 km) |
| Clay to Castel San Giorgio | 5,263.67 mi (8,471.05 km) |
| Clay to Castel San Giovanni | 4,883.90 mi (7,859.87 km) |
| Clay to Castel San Pietro Terme | 4,997.87 mi (8,043.30 km) |
| Clay to Castel Volturno | 5,219.28 mi (8,399.62 km) |
| Clay to Castelbuono | 5,343.93 mi (8,600.22 km) |
| Clay to Casteldaccia | 5,313.64 mi (8,551.48 km) |
