| Greenock to Cognac | 734.09 mi (1,181.40 km) |
| Greenock to Cogolin | 1,009.76 mi (1,625.05 km) |
| Greenock to Colmar | 747.06 mi (1,202.28 km) |
| Greenock to Colombes | 567.73 mi (913.68 km) |
| Greenock to Colomiers | 893.90 mi (1,438.59 km) |
| Greenock to Combs-la-Ville | 589.83 mi (949.24 km) |
| Greenock to Comines | 480.34 mi (773.03 km) |
| Greenock to Compiegne | 551.48 mi (887.53 km) |
| Greenock to Concarneau | 559.06 mi (899.72 km) |
| Greenock to Conde-sur-l'Escaut | 513.16 mi (825.85 km) |
| Greenock to Conflans-Sainte-Honorine | 559.81 mi (900.93 km) |
| Greenock to Corbas | 824.58 mi (1,327.03 km) |
| Greenock to Corbeil-Essonnes | 591.53 mi (951.98 km) |
| Greenock to Cormeilles-en-Parisis | 563.58 mi (906.99 km) |
| Greenock to Cosne sur Loire | 674.84 mi (1,086.05 km) |
