| Guadarrama to Castelfidardo | 922.97 mi (1,485.38 km) |
| Guadarrama to Castelfiorentino | 796.21 mi (1,281.38 km) |
| Guadarrama to Castelfranco di Sopra | 825.69 mi (1,328.81 km) |
| Guadarrama to Castelfranco di Sotto | 786.73 mi (1,266.12 km) |
| Guadarrama to Castelfranco Emilia | 814.55 mi (1,310.89 km) |
| Guadarrama to Castelfranco Veneto | 876.03 mi (1,409.84 km) |
| Guadarrama to Castellabate | 999.20 mi (1,608.06 km) |
| Guadarrama to Castellammare del Golfo | 923.37 mi (1,486.02 km) |
| Guadarrama to Castellammare di Stabia | 971.11 mi (1,562.85 km) |
| Guadarrama to Castellamonte | 678.12 mi (1,091.33 km) |
| Guadarrama to Castellana Grotte | 1,109.46 mi (1,785.50 km) |
| Guadarrama to Castellaneta | 1,099.32 mi (1,769.19 km) |
| Guadarrama to Castellanza | 737.31 mi (1,186.58 km) |
| Guadarrama to Castellarano | 801.18 mi (1,289.38 km) |
| Guadarrama to Castelleone | 768.12 mi (1,236.16 km) |
