| Clayton to Cadiz | 1,210.90 mi (1,948.76 km) |
| Clayton to Calafell | 883.27 mi (1,421.49 km) |
| Clayton to Calahorra | 793.36 mi (1,276.79 km) |
| Clayton to Calasparra | 1,074.51 mi (1,729.26 km) |
| Clayton to Calatayud | 859.01 mi (1,382.44 km) |
| Clayton to Caldas de Montbuy | 859.24 mi (1,382.82 km) |
| Clayton to Caldas de Reyes | 832.99 mi (1,340.57 km) |
| Clayton to Calella | 865.49 mi (1,392.87 km) |
| Clayton to Callosa de Segura | 1,082.87 mi (1,742.71 km) |
| Clayton to Calpe | 1,049.54 mi (1,689.07 km) |
| Clayton to Calvia | 1,002.90 mi (1,614.01 km) |
| Clayton to Camas | 1,149.47 mi (1,849.90 km) |
| Clayton to Cambados | 842.46 mi (1,355.80 km) |
| Clayton to Cambre | 783.54 mi (1,260.99 km) |
| Clayton to Cambrils | 888.51 mi (1,429.93 km) |
