| Geilenkirchen to Cizre | 1,993.73 mi (3,208.60 km) |
| Geilenkirchen to Cobanlar | 1,464.57 mi (2,357.00 km) |
| Geilenkirchen to Corlu | 1,233.93 mi (1,985.82 km) |
| Geilenkirchen to Corum | 1,551.68 mi (2,497.19 km) |
| Geilenkirchen to Cukurca | 2,057.84 mi (3,311.78 km) |
| Geilenkirchen to Cukurcayir | 1,736.81 mi (2,795.12 km) |
| Geilenkirchen to Cumayeri | 1,372.48 mi (2,208.79 km) |
| Geilenkirchen to Cumra | 1,596.61 mi (2,569.49 km) |
| Geilenkirchen to Cungus | 1,832.95 mi (2,949.85 km) |
| Geilenkirchen to Dargecit | 1,964.67 mi (3,161.82 km) |
| Geilenkirchen to Davutlar | 1,380.58 mi (2,221.82 km) |
| Geilenkirchen to Demirozu | 1,775.82 mi (2,857.91 km) |
| Geilenkirchen to Demre | 1,555.76 mi (2,503.75 km) |
| Geilenkirchen to Denizciler | 1,777.99 mi (2,861.40 km) |
| Geilenkirchen to Denizli | 1,444.88 mi (2,325.31 km) |
