| Gretna to Civril | 6,332.83 mi (10,191.70 km) |
| Gretna to Cizre | 6,858.23 mi (11,037.25 km) |
| Gretna to Cobanlar | 6,356.78 mi (10,230.25 km) |
| Gretna to Corlu | 6,126.57 mi (9,859.77 km) |
| Gretna to Corum | 6,431.25 mi (10,350.09 km) |
| Gretna to Cukurca | 6,913.17 mi (11,125.67 km) |
| Gretna to Cukurcayir | 6,582.77 mi (10,593.94 km) |
| Gretna to Cumayeri | 6,263.11 mi (10,079.50 km) |
| Gretna to Cumra | 6,489.16 mi (10,443.30 km) |
| Gretna to Cungus | 6,707.67 mi (10,794.95 km) |
| Gretna to Dargecit | 6,830.41 mi (10,992.49 km) |
| Gretna to Davutlar | 6,257.21 mi (10,070.01 km) |
| Gretna to Demirozu | 6,629.60 mi (10,669.32 km) |
| Gretna to Demre | 6,436.48 mi (10,358.51 km) |
| Gretna to Denizciler | 6,669.67 mi (10,733.79 km) |
