| Clemmons to Coudekerque-Branche | 4,047.73 mi (6,514.20 km) |
| Clemmons to Coueron | 3,961.62 mi (6,375.62 km) |
| Clemmons to Coulommiers | 4,130.66 mi (6,647.66 km) |
| Clemmons to Courbevoic | 4,093.43 mi (6,587.73 km) |
| Clemmons to Courcouronnes | 4,107.75 mi (6,610.78 km) |
| Clemmons to Cournon-d'Auvergne | 4,216.67 mi (6,786.08 km) |
| Clemmons to Courrieres | 4,084.10 mi (6,572.72 km) |
| Clemmons to Coutras | 4,086.18 mi (6,576.08 km) |
| Clemmons to Couzeix | 4,126.08 mi (6,640.28 km) |
| Clemmons to Cran-Gevrier | 4,339.91 mi (6,984.42 km) |
| Clemmons to Craponne | 4,283.96 mi (6,894.36 km) |
| Clemmons to Creil | 4,094.22 mi (6,589.01 km) |
| Clemmons to Crepy-en-Valois | 4,111.82 mi (6,617.33 km) |
| Clemmons to Crest | 4,326.30 mi (6,962.51 km) |
| Clemmons to Creteil | 4,104.98 mi (6,606.32 km) |
