| Gelsenkirchen to Cartagena | 1,039.09 mi (1,672.25 km) |
| Gelsenkirchen to Cartama | 1,173.56 mi (1,888.66 km) |
| Gelsenkirchen to Cartaya | 1,204.51 mi (1,938.47 km) |
| Gelsenkirchen to Caspe | 786.79 mi (1,266.22 km) |
| Gelsenkirchen to Cassa de la Selva | 694.37 mi (1,117.48 km) |
| Gelsenkirchen to Castalla | 968.59 mi (1,558.80 km) |
| Gelsenkirchen to Castellbisbal | 734.70 mi (1,182.39 km) |
| Gelsenkirchen to Castelldefels | 747.76 mi (1,203.40 km) |
| Gelsenkirchen to Castello de Ampurias | 667.08 mi (1,073.55 km) |
| Gelsenkirchen to Castellon de la Plana | 866.93 mi (1,395.19 km) |
| Gelsenkirchen to Castilleja de la Cuesta | 1,168.35 mi (1,880.28 km) |
| Gelsenkirchen to Catarroja | 911.43 mi (1,466.80 km) |
| Gelsenkirchen to Catral | 999.46 mi (1,608.48 km) |
| Gelsenkirchen to Caudete | 967.71 mi (1,557.37 km) |
| Gelsenkirchen to Cehegin | 1,023.21 mi (1,646.70 km) |
