| Gahanna to Carpentras | 4,293.76 mi (6,910.13 km) |
| Gahanna to Carquefou | 3,910.41 mi (6,293.20 km) |
| Gahanna to Carqueiranne | 4,371.66 mi (7,035.50 km) |
| Gahanna to Carrieres-sous-Poissy | 4,008.56 mi (6,451.16 km) |
| Gahanna to Carrieres-sur-Seine | 4,019.90 mi (6,469.40 km) |
| Gahanna to Carros | 4,395.55 mi (7,073.95 km) |
| Gahanna to Carvin | 3,999.12 mi (6,435.96 km) |
| Gahanna to Castanet-Tolosan | 4,157.55 mi (6,690.94 km) |
| Gahanna to Castelginest | 4,148.82 mi (6,676.88 km) |
| Gahanna to Castelnau-le-Lez | 4,258.60 mi (6,853.56 km) |
| Gahanna to Castelnaudary | 4,184.17 mi (6,733.78 km) |
| Gahanna to Castelsarrasin | 4,123.19 mi (6,635.63 km) |
| Gahanna to Castres | 4,187.77 mi (6,739.57 km) |
| Gahanna to Caudebec-les-Elbeuf | 3,957.12 mi (6,368.38 km) |
| Gahanna to Caudry | 4,028.22 mi (6,482.80 km) |
