| Grevena to Cologno al Serio | 704.17 mi (1,133.26 km) |
| Grevena to Cologno Monzese | 720.45 mi (1,159.46 km) |
| Grevena to Colorno | 653.86 mi (1,052.28 km) |
| Grevena to Comacchio | 568.82 mi (915.42 km) |
| Grevena to Comiso | 427.77 mi (688.43 km) |
| Grevena to Como | 737.70 mi (1,187.21 km) |
| Grevena to Concordia Sagittaria | 584.56 mi (940.76 km) |
| Grevena to Concorezzo | 719.92 mi (1,158.60 km) |
| Grevena to Conegliano | 610.55 mi (982.59 km) |
| Grevena to Conselice | 577.47 mi (929.35 km) |
| Grevena to Conselve | 601.43 mi (967.90 km) |
| Grevena to Conversano | 234.42 mi (377.27 km) |
| Grevena to Copertino | 178.74 mi (287.65 km) |
| Grevena to Copparo | 590.64 mi (950.54 km) |
| Grevena to Corato | 273.71 mi (440.49 km) |
