| Gahanna to Cortona | 4,616.42 mi (7,429.42 km) |
| Gahanna to Cosenza | 4,956.12 mi (7,976.11 km) |
| Gahanna to Cossato | 4,372.40 mi (7,036.69 km) |
| Gahanna to Costa Volpino | 4,442.43 mi (7,149.39 km) |
| Gahanna to Creazzo | 4,509.86 mi (7,257.91 km) |
| Gahanna to Crema | 4,442.30 mi (7,149.19 km) |
| Gahanna to Cremona | 4,465.29 mi (7,186.19 km) |
| Gahanna to Crevalcore | 4,526.82 mi (7,285.22 km) |
| Gahanna to Crispiano | 4,943.13 mi (7,955.20 km) |
| Gahanna to Crosia | 4,966.88 mi (7,993.42 km) |
| Gahanna to Crotone | 5,002.07 mi (8,050.05 km) |
| Gahanna to Cuneo | 4,388.81 mi (7,063.11 km) |
| Gahanna to Cuorgne | 4,357.19 mi (7,012.22 km) |
| Gahanna to Cusano Milanino | 4,415.03 mi (7,105.30 km) |
| Gahanna to Cutro | 4,998.50 mi (8,044.31 km) |
