| Guadarrama to Busto Arsizio | 735.04 mi (1,182.93 km) |
| Guadarrama to Busto Garolfo | 734.87 mi (1,182.65 km) |
| Guadarrama to Cabras | 666.48 mi (1,072.60 km) |
| Guadarrama to Cadelbosco di Sopra | 796.07 mi (1,281.15 km) |
| Guadarrama to Cadoneghe | 871.65 mi (1,402.78 km) |
| Guadarrama to Cagli | 879.06 mi (1,414.71 km) |
| Guadarrama to Cagliari | 705.57 mi (1,135.50 km) |
| Guadarrama to Cairo Montenotte | 678.83 mi (1,092.48 km) |
| Guadarrama to Caivano | 960.05 mi (1,545.05 km) |
| Guadarrama to Calcinaia | 779.97 mi (1,255.25 km) |
| Guadarrama to Calcinato | 801.77 mi (1,290.32 km) |
| Guadarrama to Calderara di Reno | 824.27 mi (1,326.53 km) |
| Guadarrama to Caldogno | 854.43 mi (1,375.08 km) |
| Guadarrama to Calenzano | 809.26 mi (1,302.38 km) |
| Guadarrama to Calolziocorte | 765.94 mi (1,232.66 km) |
