| Geilenkirchen to Civita Castellana | 668.64 mi (1,076.06 km) |
| Geilenkirchen to Civitanova Marche | 638.45 mi (1,027.49 km) |
| Geilenkirchen to Civitavecchia | 668.91 mi (1,076.50 km) |
| Geilenkirchen to Civitella in Val di Chiana | 583.62 mi (939.24 km) |
| Geilenkirchen to Clusone | 392.48 mi (631.63 km) |
| Geilenkirchen to Coccaglio | 413.15 mi (664.90 km) |
| Geilenkirchen to Codigoro | 506.26 mi (814.75 km) |
| Geilenkirchen to Codogno | 433.80 mi (698.14 km) |
| Geilenkirchen to Codroipo | 466.78 mi (751.21 km) |
| Geilenkirchen to Cogoleto | 469.23 mi (755.16 km) |
| Geilenkirchen to Colle di Val d'Elsa | 572.96 mi (922.09 km) |
| Geilenkirchen to Colle Salvetti | 548.21 mi (882.26 km) |
| Geilenkirchen to Collecchio | 469.39 mi (755.40 km) |
| Geilenkirchen to Colleferro | 716.94 mi (1,153.81 km) |
| Geilenkirchen to Collegno | 412.29 mi (663.52 km) |
