| Guadarrama to Castrovillari | 1,069.26 mi (1,720.81 km) |
| Guadarrama to Catania | 1,049.42 mi (1,688.88 km) |
| Guadarrama to Catanzaro | 1,102.68 mi (1,774.59 km) |
| Guadarrama to Cattolica | 887.27 mi (1,427.92 km) |
| Guadarrama to Cava de' Tirreni | 982.52 mi (1,581.21 km) |
| Guadarrama to Cavallino | 1,168.24 mi (1,880.10 km) |
| Guadarrama to Cavarzere | 872.71 mi (1,404.49 km) |
| Guadarrama to Cave | 886.39 mi (1,426.50 km) |
| Guadarrama to Cavriago | 791.68 mi (1,274.09 km) |
| Guadarrama to Cavriglia | 820.86 mi (1,321.04 km) |
| Guadarrama to Cazzago San Martino | 786.97 mi (1,266.50 km) |
| Guadarrama to Ceccano | 907.39 mi (1,460.30 km) |
| Guadarrama to Cecina | 770.82 mi (1,240.52 km) |
| Guadarrama to Cefalu | 982.51 mi (1,581.20 km) |
| Guadarrama to Ceglie Messapico | 1,128.66 mi (1,816.41 km) |
