| Greenock to Cehegin | 1,241.43 mi (1,997.89 km) |
| Greenock to Cervello | 1,050.12 mi (1,690.00 km) |
| Greenock to Cervera | 1,023.49 mi (1,647.15 km) |
| Greenock to Ceuti | 1,245.29 mi (2,004.10 km) |
| Greenock to Cheste | 1,153.19 mi (1,855.87 km) |
| Greenock to Chiclana de la Frontera | 1,351.18 mi (2,174.51 km) |
| Greenock to Chipiona | 1,330.03 mi (2,140.48 km) |
| Greenock to Chiva | 1,153.49 mi (1,856.37 km) |
| Greenock to Churriana de la Vega | 1,299.99 mi (2,092.13 km) |
| Greenock to Ciempozuelos | 1,092.28 mi (1,757.86 km) |
| Greenock to Cieza | 1,233.42 mi (1,984.99 km) |
| Greenock to Cisterniga | 990.34 mi (1,593.80 km) |
| Greenock to Ciudad de Melilla | 1,430.56 mi (2,302.27 km) |
| Greenock to Ciudad Real | 1,172.93 mi (1,887.65 km) |
| Greenock to Ciudad-Rodrigo | 1,063.84 mi (1,712.08 km) |
