| Grottaferrata to Coin | 995.12 mi (1,601.49 km) |
| Grottaferrata to Colindres | 826.12 mi (1,329.51 km) |
| Grottaferrata to Collado-Villalba | 869.28 mi (1,398.98 km) |
| Grottaferrata to Colmenar Viejo | 856.46 mi (1,378.35 km) |
| Grottaferrata to Colmenarejo | 870.67 mi (1,401.22 km) |
| Grottaferrata to Conil de la Frontera | 1,073.77 mi (1,728.07 km) |
| Grottaferrata to Consuegra | 867.25 mi (1,395.71 km) |
| Grottaferrata to Corbera de Llobregat | 555.14 mi (893.41 km) |
| Grottaferrata to Cordoba | 962.42 mi (1,548.87 km) |
| Grottaferrata to Coria del Rio | 1,042.57 mi (1,677.86 km) |
| Grottaferrata to Crevillente | 753.10 mi (1,211.99 km) |
| Grottaferrata to Cuarte de Huerva | 700.56 mi (1,127.45 km) |
| Grottaferrata to Cubellas | 570.14 mi (917.56 km) |
| Grottaferrata to Cuellar | 876.65 mi (1,410.83 km) |
| Grottaferrata to Cuenca | 781.81 mi (1,258.20 km) |
