| Geilenkirchen to Catania | 1,029.13 mi (1,656.23 km) |
| Geilenkirchen to Catanzaro | 976.47 mi (1,571.48 km) |
| Geilenkirchen to Cattolica | 573.29 mi (922.62 km) |
| Geilenkirchen to Cava de' Tirreni | 819.52 mi (1,318.89 km) |
| Geilenkirchen to Cavallino | 936.58 mi (1,507.27 km) |
| Geilenkirchen to Cavarzere | 487.50 mi (784.55 km) |
| Geilenkirchen to Cave | 709.91 mi (1,142.49 km) |
| Geilenkirchen to Cavriago | 478.64 mi (770.30 km) |
| Geilenkirchen to Cavriglia | 572.49 mi (921.33 km) |
| Geilenkirchen to Cazzago San Martino | 412.93 mi (664.55 km) |
| Geilenkirchen to Ceccano | 734.30 mi (1,181.75 km) |
| Geilenkirchen to Cecina | 567.18 mi (912.78 km) |
| Geilenkirchen to Cefalu | 973.24 mi (1,566.29 km) |
| Geilenkirchen to Ceglie Messapico | 896.94 mi (1,443.49 km) |
| Geilenkirchen to Celano | 707.25 mi (1,138.20 km) |
