| Gourock to Cognac | 734.94 mi (1,182.77 km) |
| Gourock to Cogolin | 1,011.12 mi (1,627.24 km) |
| Gourock to Colmar | 748.75 mi (1,205.00 km) |
| Gourock to Colombes | 569.09 mi (915.86 km) |
| Gourock to Colomiers | 894.84 mi (1,440.11 km) |
| Gourock to Combs-la-Ville | 591.19 mi (951.43 km) |
| Gourock to Comines | 481.96 mi (775.64 km) |
| Gourock to Compiegne | 552.94 mi (889.88 km) |
| Gourock to Concarneau | 559.47 mi (900.38 km) |
| Gourock to Conde-sur-l'Escaut | 514.79 mi (828.47 km) |
| Gourock to Conflans-Sainte-Honorine | 561.16 mi (903.10 km) |
| Gourock to Corbas | 825.94 mi (1,329.23 km) |
| Gourock to Corbeil-Essonnes | 592.88 mi (954.16 km) |
| Gourock to Cormeilles-en-Parisis | 564.93 mi (909.17 km) |
| Gourock to Cosne sur Loire | 676.15 mi (1,088.15 km) |
