| Clayton to Carmignano | 900.01 mi (1,448.42 km) |
| Clayton to Carovigno | 1,277.21 mi (2,055.47 km) |
| Clayton to Carpenedolo | 797.35 mi (1,283.22 km) |
| Clayton to Carpi | 842.55 mi (1,355.95 km) |
| Clayton to Carrara | 858.96 mi (1,382.37 km) |
| Clayton to Carugate | 754.54 mi (1,214.32 km) |
| Clayton to Casal di Principe | 1,149.65 mi (1,850.19 km) |
| Clayton to Casale Monferrato | 753.28 mi (1,212.29 km) |
| Clayton to Casale sul Sile | 845.41 mi (1,360.56 km) |
| Clayton to Casalecchio di Reno | 870.98 mi (1,401.71 km) |
| Clayton to Casalgrande | 849.02 mi (1,366.37 km) |
| Clayton to Casalmaggiore | 817.43 mi (1,315.53 km) |
| Clayton to Casalnuovo di Napoli | 1,161.76 mi (1,869.67 km) |
| Clayton to Casalpusterlengo | 784.34 mi (1,262.27 km) |
| Clayton to Casaluce | 1,152.58 mi (1,854.89 km) |
