| Gahanna to Civril | 5,551.58 mi (8,934.41 km) |
| Gahanna to Cizre | 6,058.71 mi (9,750.55 km) |
| Gahanna to Cobanlar | 5,572.55 mi (8,968.15 km) |
| Gahanna to Corlu | 5,341.42 mi (8,596.19 km) |
| Gahanna to Corum | 5,636.39 mi (9,070.89 km) |
| Gahanna to Cukurca | 6,112.04 mi (9,836.38 km) |
| Gahanna to Cukurcayir | 5,781.49 mi (9,304.40 km) |
| Gahanna to Cumayeri | 5,473.51 mi (8,808.76 km) |
| Gahanna to Cumra | 5,704.01 mi (9,179.71 km) |
| Gahanna to Cungus | 5,910.70 mi (9,512.36 km) |
| Gahanna to Dargecit | 6,031.20 mi (9,706.28 km) |
| Gahanna to Davutlar | 5,482.49 mi (8,823.22 km) |
| Gahanna to Demirozu | 5,829.14 mi (9,381.10 km) |
| Gahanna to Demre | 5,660.42 mi (9,109.57 km) |
| Gahanna to Denizciler | 5,880.34 mi (9,463.50 km) |
