| Webster Groves to Coudekerque-Branche | 4,320.24 mi (6,952.75 km) |
| Webster Groves to Coueron | 4,279.53 mi (6,887.24 km) |
| Webster Groves to Coulommiers | 4,421.30 mi (7,115.39 km) |
| Webster Groves to Courbevoic | 4,385.64 mi (7,058.00 km) |
| Webster Groves to Courcouronnes | 4,401.91 mi (7,084.19 km) |
| Webster Groves to Cournon-d'Auvergne | 4,533.40 mi (7,295.80 km) |
| Webster Groves to Courrieres | 4,360.34 mi (7,017.30 km) |
| Webster Groves to Coutras | 4,418.49 mi (7,110.88 km) |
| Webster Groves to Couzeix | 4,447.42 mi (7,157.44 km) |
| Webster Groves to Cran-Gevrier | 4,646.41 mi (7,477.67 km) |
| Webster Groves to Craponne | 4,596.04 mi (7,396.61 km) |
| Webster Groves to Creil | 4,382.58 mi (7,053.07 km) |
| Webster Groves to Crepy-en-Valois | 4,399.28 mi (7,079.96 km) |
| Webster Groves to Crest | 4,645.76 mi (7,476.64 km) |
| Webster Groves to Creteil | 4,397.56 mi (7,077.19 km) |
