| Gummersbach to Cizre | 1,934.13 mi (3,112.68 km) |
| Gummersbach to Cobanlar | 1,410.60 mi (2,270.13 km) |
| Gummersbach to Corlu | 1,179.53 mi (1,898.27 km) |
| Gummersbach to Corum | 1,493.01 mi (2,402.77 km) |
| Gummersbach to Cukurca | 1,997.76 mi (3,215.08 km) |
| Gummersbach to Cukurcayir | 1,675.95 mi (2,697.17 km) |
| Gummersbach to Cumayeri | 1,315.88 mi (2,117.70 km) |
| Gummersbach to Cumra | 1,542.19 mi (2,481.92 km) |
| Gummersbach to Cungus | 1,774.01 mi (2,854.99 km) |
| Gummersbach to Dargecit | 1,905.12 mi (3,065.99 km) |
| Gummersbach to Davutlar | 1,331.46 mi (2,142.77 km) |
| Gummersbach to Demirozu | 1,715.38 mi (2,760.64 km) |
| Gummersbach to Demre | 1,505.41 mi (2,422.72 km) |
| Gummersbach to Denizciler | 1,721.94 mi (2,771.20 km) |
| Gummersbach to Denizli | 1,393.67 mi (2,242.89 km) |
