| Clayton to Caltagirone | 1,382.58 mi (2,225.04 km) |
| Clayton to Caltanissetta | 1,355.34 mi (2,181.21 km) |
| Clayton to Calvisano | 795.62 mi (1,280.43 km) |
| Clayton to Calvizzano | 1,157.78 mi (1,863.26 km) |
| Clayton to Camaiore | 872.90 mi (1,404.80 km) |
| Clayton to Cameri | 737.77 mi (1,187.33 km) |
| Clayton to Camisano Vicentino | 829.59 mi (1,335.10 km) |
| Clayton to Campagna | 1,198.39 mi (1,928.62 km) |
| Clayton to Campagnano di Roma | 1,034.93 mi (1,665.56 km) |
| Clayton to Campi Bisenzio | 903.40 mi (1,453.88 km) |
| Clayton to Campi Salentina | 1,304.87 mi (2,099.98 km) |
| Clayton to Campiglia Marittima | 931.49 mi (1,499.09 km) |
| Clayton to Campobasso | 1,134.75 mi (1,826.21 km) |
| Clayton to Campobello di Licata | 1,366.11 mi (2,198.53 km) |
| Clayton to Campobello di Mazara | 1,312.89 mi (2,112.90 km) |
