| Clayton to Cehegin | 1,084.04 mi (1,744.59 km) |
| Clayton to Cervello | 873.32 mi (1,405.48 km) |
| Clayton to Cervera | 849.13 mi (1,366.54 km) |
| Clayton to Ceuti | 1,085.28 mi (1,746.59 km) |
| Clayton to Cheste | 989.61 mi (1,592.63 km) |
| Clayton to Chiclana de la Frontera | 1,217.75 mi (1,959.78 km) |
| Clayton to Chipiona | 1,198.55 mi (1,928.88 km) |
| Clayton to Chiva | 990.10 mi (1,593.41 km) |
| Clayton to Churriana de la Vega | 1,152.50 mi (1,854.77 km) |
| Clayton to Ciempozuelos | 945.00 mi (1,520.83 km) |
| Clayton to Cieza | 1,074.07 mi (1,728.54 km) |
| Clayton to Cisterniga | 850.88 mi (1,369.37 km) |
| Clayton to Ciudad de Melilla | 1,279.37 mi (2,058.95 km) |
| Clayton to Ciudad Real | 1,027.28 mi (1,653.24 km) |
| Clayton to Ciudad-Rodrigo | 937.10 mi (1,508.12 km) |
