| Greenock to Campo de Criptana | 1,145.98 mi (1,844.28 km) |
| Greenock to Campos del Puerto | 1,195.62 mi (1,924.16 km) |
| Greenock to Canals | 1,189.41 mi (1,914.17 km) |
| Greenock to Candelaria | 1,991.03 mi (3,204.26 km) |
| Greenock to Canet de Mar | 1,045.59 mi (1,682.71 km) |
| Greenock to Cangas | 962.48 mi (1,548.96 km) |
| Greenock to Cangas de Narcea | 886.41 mi (1,426.54 km) |
| Greenock to Canovellas | 1,039.63 mi (1,673.12 km) |
| Greenock to Canteras | 1,278.73 mi (2,057.92 km) |
| Greenock to Cantillana | 1,268.80 mi (2,041.94 km) |
| Greenock to Capdepera | 1,183.46 mi (1,904.59 km) |
| Greenock to Carballo | 896.76 mi (1,443.19 km) |
| Greenock to Carcagente | 1,179.42 mi (1,898.09 km) |
| Greenock to Cardedeu | 1,039.17 mi (1,672.38 km) |
| Greenock to Carlet | 1,171.74 mi (1,885.73 km) |
