| Clarksburg to Cehegin | 3,945.50 mi (6,349.67 km) |
| Clarksburg to Cervello | 4,021.95 mi (6,472.70 km) |
| Clarksburg to Cervera | 3,981.80 mi (6,408.09 km) |
| Clarksburg to Ceuti | 3,971.48 mi (6,391.48 km) |
| Clarksburg to Cheste | 3,956.34 mi (6,367.11 km) |
| Clarksburg to Chiclana de la Frontera | 3,782.74 mi (6,087.74 km) |
| Clarksburg to Chipiona | 3,759.02 mi (6,049.56 km) |
| Clarksburg to Chiva | 3,954.91 mi (6,364.81 km) |
| Clarksburg to Churriana de la Vega | 3,884.19 mi (6,250.99 km) |
| Clarksburg to Ciempozuelos | 3,795.63 mi (6,108.48 km) |
| Clarksburg to Cieza | 3,959.37 mi (6,371.98 km) |
| Clarksburg to Cisterniga | 3,703.81 mi (5,960.70 km) |
| Clarksburg to Ciudad de Melilla | 3,978.10 mi (6,402.14 km) |
| Clarksburg to Ciudad Real | 3,815.65 mi (6,140.69 km) |
| Clarksburg to Ciudad-Rodrigo | 3,642.88 mi (5,862.65 km) |
