| Geilenkirchen to Ciampino | 703.92 mi (1,132.85 km) |
| Geilenkirchen to Cicciano | 799.15 mi (1,286.11 km) |
| Geilenkirchen to Cingoli | 621.27 mi (999.84 km) |
| Geilenkirchen to Cinisello Balsamo | 400.28 mi (644.18 km) |
| Geilenkirchen to Cinisi | 947.66 mi (1,525.11 km) |
| Geilenkirchen to Cirie | 401.74 mi (646.53 km) |
| Geilenkirchen to Ciro Marina | 961.81 mi (1,547.88 km) |
| Geilenkirchen to Cislago | 389.79 mi (627.30 km) |
| Geilenkirchen to Cisterna di Latina | 721.90 mi (1,161.78 km) |
| Geilenkirchen to Cisternino | 890.21 mi (1,432.66 km) |
| Geilenkirchen to Citta di Castello | 592.37 mi (953.33 km) |
| Geilenkirchen to Citta Sant'Angelo | 693.20 mi (1,115.59 km) |
| Geilenkirchen to Cittadella | 449.85 mi (723.96 km) |
| Geilenkirchen to Cittanova | 997.71 mi (1,605.67 km) |
| Geilenkirchen to Cividale del Friuli | 473.89 mi (762.65 km) |
