| Sumter to Coudekerque-Branche | 4,147.49 mi (6,674.75 km) |
| Sumter to Coueron | 4,051.41 mi (6,520.12 km) |
| Sumter to Coulommiers | 4,226.28 mi (6,801.54 km) |
| Sumter to Courbevoic | 4,188.80 mi (6,741.22 km) |
| Sumter to Courcouronnes | 4,202.65 mi (6,763.50 km) |
| Sumter to Cournon-d'Auvergne | 4,306.02 mi (6,929.87 km) |
| Sumter to Courrieres | 4,182.97 mi (6,731.84 km) |
| Sumter to Coutras | 4,172.05 mi (6,714.27 km) |
| Sumter to Couzeix | 4,214.56 mi (6,782.67 km) |
| Sumter to Cran-Gevrier | 4,431.36 mi (7,131.58 km) |
| Sumter to Craponne | 4,374.23 mi (7,039.65 km) |
| Sumter to Creil | 4,190.44 mi (6,743.86 km) |
| Sumter to Crepy-en-Valois | 4,208.19 mi (6,772.43 km) |
| Sumter to Crest | 4,414.69 mi (7,104.75 km) |
| Sumter to Creteil | 4,200.23 mi (6,759.62 km) |
