| Clemson to Coudekerque-Branche | 4,210.97 mi (6,776.90 km) |
| Clemson to Coueron | 4,126.63 mi (6,641.17 km) |
| Clemson to Coulommiers | 4,294.80 mi (6,911.82 km) |
| Clemson to Courbevoic | 4,257.62 mi (6,851.98 km) |
| Clemson to Courcouronnes | 4,272.03 mi (6,875.16 km) |
| Clemson to Cournon-d'Auvergne | 4,381.71 mi (7,051.67 km) |
| Clemson to Courrieres | 4,247.55 mi (6,835.77 km) |
| Clemson to Coutras | 4,251.49 mi (6,842.11 km) |
| Clemson to Couzeix | 4,291.20 mi (6,906.02 km) |
| Clemson to Cran-Gevrier | 4,504.70 mi (7,249.62 km) |
| Clemson to Craponne | 4,448.89 mi (7,159.80 km) |
| Clemson to Creil | 4,258.25 mi (6,852.99 km) |
| Clemson to Crepy-en-Valois | 4,275.82 mi (6,881.26 km) |
| Clemson to Crest | 4,491.42 mi (7,228.24 km) |
| Clemson to Creteil | 4,269.19 mi (6,870.60 km) |
