| Grevena to Cartagena | 1,214.83 mi (1,955.07 km) |
| Grevena to Cartama | 1,424.89 mi (2,293.13 km) |
| Grevena to Cartaya | 1,546.69 mi (2,489.16 km) |
| Grevena to Caspe | 1,124.78 mi (1,810.16 km) |
| Grevena to Cassa de la Selva | 973.71 mi (1,567.04 km) |
| Grevena to Castalla | 1,182.26 mi (1,902.66 km) |
| Grevena to Castellbisbal | 1,019.71 mi (1,641.07 km) |
| Grevena to Castelldefels | 1,020.33 mi (1,642.07 km) |
| Grevena to Castello de Ampurias | 964.31 mi (1,551.91 km) |
| Grevena to Castellon de la Plana | 1,132.57 mi (1,822.69 km) |
| Grevena to Castilleja de la Cuesta | 1,486.68 mi (2,392.58 km) |
| Grevena to Catarroja | 1,157.90 mi (1,863.46 km) |
| Grevena to Catral | 1,195.98 mi (1,924.74 km) |
| Grevena to Caudete | 1,197.49 mi (1,927.18 km) |
| Grevena to Cehegin | 1,249.59 mi (2,011.02 km) |
