| Gahanna to Corato | 4,885.49 mi (7,862.43 km) |
| Gahanna to Corbetta | 4,407.03 mi (7,092.43 km) |
| Gahanna to Corciano | 4,634.25 mi (7,458.10 km) |
| Gahanna to Cordenons | 4,542.08 mi (7,309.76 km) |
| Gahanna to Cori | 4,718.99 mi (7,594.48 km) |
| Gahanna to Coriano | 4,615.17 mi (7,427.39 km) |
| Gahanna to Corigliano Calabro | 4,954.90 mi (7,974.14 km) |
| Gahanna to Corleone | 4,889.69 mi (7,869.20 km) |
| Gahanna to Cormano | 4,414.35 mi (7,104.20 km) |
| Gahanna to Cornaredo | 4,410.65 mi (7,098.25 km) |
| Gahanna to Cornate d'Adda | 4,423.08 mi (7,118.25 km) |
| Gahanna to Cornedo Vicentino | 4,501.32 mi (7,244.17 km) |
| Gahanna to Correggio | 4,509.65 mi (7,257.57 km) |
| Gahanna to Corridonia | 4,680.96 mi (7,533.28 km) |
| Gahanna to Corsico | 4,416.50 mi (7,107.67 km) |
