| Unterwellenborn to Coin | 1,255.12 mi (2,019.92 km) |
| Unterwellenborn to Colindres | 859.73 mi (1,383.60 km) |
| Unterwellenborn to Collado-Villalba | 1,014.46 mi (1,632.61 km) |
| Unterwellenborn to Colmenar Viejo | 1,004.69 mi (1,616.89 km) |
| Unterwellenborn to Colmenarejo | 1,018.50 mi (1,639.12 km) |
| Unterwellenborn to Conil de la Frontera | 1,320.35 mi (2,124.89 km) |
| Unterwellenborn to Consuegra | 1,062.74 mi (1,710.31 km) |
| Unterwellenborn to Corbera de Llobregat | 783.36 mi (1,260.70 km) |
| Unterwellenborn to Cordoba | 1,187.71 mi (1,911.43 km) |
| Unterwellenborn to Coria del Rio | 1,262.81 mi (2,032.29 km) |
| Unterwellenborn to Crevillente | 1,045.96 mi (1,683.32 km) |
| Unterwellenborn to Cuarte de Huerva | 860.04 mi (1,384.10 km) |
| Unterwellenborn to Cubellas | 802.59 mi (1,291.64 km) |
| Unterwellenborn to Cuellar | 986.54 mi (1,587.68 km) |
| Unterwellenborn to Cuenca | 982.27 mi (1,580.81 km) |
