| Boadilla del Monte to Cividale del Friuli | 953.08 mi (1,533.84 km) |
| Boadilla del Monte to Civita Castellana | 853.31 mi (1,373.27 km) |
| Boadilla del Monte to Civitanova Marche | 926.11 mi (1,490.43 km) |
| Boadilla del Monte to Civitavecchia | 821.39 mi (1,321.91 km) |
| Boadilla del Monte to Civitella in Val di Chiana | 826.84 mi (1,330.67 km) |
| Boadilla del Monte to Clusone | 791.49 mi (1,273.78 km) |
| Boadilla del Monte to Coccaglio | 784.16 mi (1,261.98 km) |
| Boadilla del Monte to Codigoro | 866.88 mi (1,395.10 km) |
| Boadilla del Monte to Codogno | 761.62 mi (1,225.71 km) |
| Boadilla del Monte to Codroipo | 929.42 mi (1,495.76 km) |
| Boadilla del Monte to Cogoleto | 694.67 mi (1,117.96 km) |
| Boadilla del Monte to Colle di Val d'Elsa | 797.77 mi (1,283.89 km) |
| Boadilla del Monte to Colle Salvetti | 768.37 mi (1,236.57 km) |
| Boadilla del Monte to Collecchio | 775.88 mi (1,248.66 km) |
| Boadilla del Monte to Colleferro | 883.21 mi (1,421.39 km) |
