| Gahanna to Carmona | 4,027.76 mi (6,482.06 km) |
| Gahanna to Cartagena | 4,245.11 mi (6,831.84 km) |
| Gahanna to Cartama | 4,101.40 mi (6,600.56 km) |
| Gahanna to Cartaya | 3,960.52 mi (6,373.85 km) |
| Gahanna to Caspe | 4,164.89 mi (6,702.75 km) |
| Gahanna to Cassa de la Selva | 4,273.45 mi (6,877.45 km) |
| Gahanna to Castalla | 4,225.14 mi (6,799.70 km) |
| Gahanna to Castellbisbal | 4,247.74 mi (6,836.08 km) |
| Gahanna to Castelldefels | 4,254.25 mi (6,846.56 km) |
| Gahanna to Castello de Ampurias | 4,269.63 mi (6,871.31 km) |
| Gahanna to Castellon de la Plana | 4,207.15 mi (6,770.75 km) |
| Gahanna to Castilleja de la Cuesta | 4,010.44 mi (6,454.17 km) |
| Gahanna to Catarroja | 4,209.83 mi (6,775.06 km) |
| Gahanna to Catral | 4,233.98 mi (6,813.94 km) |
| Gahanna to Caudete | 4,206.59 mi (6,769.85 km) |
