| Castel Bolognese to Cologno al Serio | 134.91 mi (217.12 km) |
| Castel Bolognese to Cologno Monzese | 149.09 mi (239.93 km) |
| Castel Bolognese to Colorno | 81.66 mi (131.42 km) |
| Castel Bolognese to Comacchio | 32.53 mi (52.35 km) |
| Castel Bolognese to Comiso | 529.65 mi (852.39 km) |
| Castel Bolognese to Como | 167.89 mi (270.19 km) |
| Castel Bolognese to Concordia Sagittaria | 112.54 mi (181.11 km) |
| Castel Bolognese to Concorezzo | 149.16 mi (240.05 km) |
| Castel Bolognese to Conegliano | 111.16 mi (178.90 km) |
| Castel Bolognese to Conselice | 13.92 mi (22.40 km) |
| Castel Bolognese to Conselve | 63.42 mi (102.06 km) |
| Castel Bolognese to Conversano | 355.67 mi (572.39 km) |
| Castel Bolognese to Copertino | 424.44 mi (683.07 km) |
| Castel Bolognese to Copparo | 40.34 mi (64.91 km) |
| Castel Bolognese to Corato | 319.86 mi (514.76 km) |
