| Gahanna to Cocentaina | 4,230.77 mi (6,808.77 km) |
| Gahanna to Coin | 4,097.15 mi (6,593.72 km) |
| Gahanna to Colindres | 3,941.05 mi (6,342.50 km) |
| Gahanna to Collado-Villalba | 4,001.73 mi (6,440.16 km) |
| Gahanna to Colmenar Viejo | 4,012.18 mi (6,456.98 km) |
| Gahanna to Colmenarejo | 4,003.65 mi (6,443.24 km) |
| Gahanna to Conil de la Frontera | 4,046.00 mi (6,511.40 km) |
| Gahanna to Consuegra | 4,058.43 mi (6,531.41 km) |
| Gahanna to Corbera de Llobregat | 4,247.51 mi (6,835.70 km) |
| Gahanna to Cordoba | 4,054.88 mi (6,525.69 km) |
| Gahanna to Coria del Rio | 4,013.74 mi (6,459.48 km) |
| Gahanna to Crevillente | 4,230.71 mi (6,808.66 km) |
| Gahanna to Cuarte de Huerva | 4,113.13 mi (6,619.44 km) |
| Gahanna to Cubellas | 4,242.99 mi (6,828.44 km) |
| Gahanna to Cuellar | 3,963.29 mi (6,378.31 km) |
