| Greenock to Cadiz | 1,343.36 mi (2,161.93 km) |
| Greenock to Calafell | 1,058.35 mi (1,703.25 km) |
| Greenock to Calahorra | 951.37 mi (1,531.09 km) |
| Greenock to Calasparra | 1,232.45 mi (1,983.44 km) |
| Greenock to Calatayud | 1,018.57 mi (1,639.24 km) |
| Greenock to Caldas de Montbuy | 1,037.07 mi (1,669.00 km) |
| Greenock to Caldas de Reyes | 938.21 mi (1,509.90 km) |
| Greenock to Calella | 1,045.04 mi (1,681.82 km) |
| Greenock to Callosa de Segura | 1,244.78 mi (2,003.29 km) |
| Greenock to Calpe | 1,215.98 mi (1,956.93 km) |
| Greenock to Calvia | 1,179.78 mi (1,898.67 km) |
| Greenock to Camas | 1,282.90 mi (2,064.62 km) |
| Greenock to Cambados | 946.56 mi (1,523.35 km) |
| Greenock to Cambre | 889.36 mi (1,431.28 km) |
| Greenock to Cambrils | 1,061.35 mi (1,708.08 km) |
