| Gahanna to Coudekerque-Branche | 3,961.03 mi (6,374.66 km) |
| Gahanna to Coueron | 3,902.99 mi (6,281.26 km) |
| Gahanna to Coulommiers | 4,055.18 mi (6,526.18 km) |
| Gahanna to Courbevoic | 4,018.83 mi (6,467.68 km) |
| Gahanna to Courcouronnes | 4,034.39 mi (6,492.73 km) |
| Gahanna to Cournon-d'Auvergne | 4,157.83 mi (6,691.38 km) |
| Gahanna to Courrieres | 3,999.74 mi (6,436.95 km) |
| Gahanna to Coutras | 4,037.27 mi (6,497.36 km) |
| Gahanna to Couzeix | 4,070.04 mi (6,550.09 km) |
| Gahanna to Cran-Gevrier | 4,274.81 mi (6,879.64 km) |
| Gahanna to Craponne | 4,222.28 mi (6,795.10 km) |
| Gahanna to Creil | 4,017.25 mi (6,465.13 km) |
| Gahanna to Crepy-en-Valois | 4,034.34 mi (6,492.64 km) |
| Gahanna to Crest | 4,269.46 mi (6,871.02 km) |
| Gahanna to Creteil | 4,030.64 mi (6,486.69 km) |
