| Clarksburg to Coudekerque-Branche | 3,773.42 mi (6,072.74 km) |
| Clarksburg to Coueron | 3,693.33 mi (5,943.84 km) |
| Clarksburg to Coulommiers | 3,858.55 mi (6,209.74 km) |
| Clarksburg to Courbevoic | 3,821.48 mi (6,150.08 km) |
| Clarksburg to Courcouronnes | 3,836.08 mi (6,173.57 km) |
| Clarksburg to Cournon-d'Auvergne | 3,948.52 mi (6,354.53 km) |
| Clarksburg to Courrieres | 3,810.22 mi (6,131.96 km) |
| Clarksburg to Coutras | 3,820.64 mi (6,148.73 km) |
| Clarksburg to Couzeix | 3,858.59 mi (6,209.81 km) |
| Clarksburg to Cran-Gevrier | 4,070.28 mi (6,550.49 km) |
| Clarksburg to Craponne | 4,015.13 mi (6,461.73 km) |
| Clarksburg to Creil | 3,821.78 mi (6,150.56 km) |
| Clarksburg to Crepy-en-Valois | 3,839.29 mi (6,178.74 km) |
| Clarksburg to Crest | 4,058.75 mi (6,531.93 km) |
| Clarksburg to Creteil | 3,833.10 mi (6,168.77 km) |
