| Caerfyrddin to Cognac | 462.55 mi (744.40 km) |
| Caerfyrddin to Cogolin | 778.80 mi (1,253.36 km) |
| Caerfyrddin to Colmar | 579.65 mi (932.86 km) |
| Caerfyrddin to Colombes | 353.01 mi (568.11 km) |
| Caerfyrddin to Colomiers | 626.67 mi (1,008.53 km) |
| Caerfyrddin to Combs-la-Ville | 374.84 mi (603.24 km) |
| Caerfyrddin to Comines | 325.10 mi (523.19 km) |
| Caerfyrddin to Compiegne | 355.20 mi (571.64 km) |
| Caerfyrddin to Concarneau | 275.61 mi (443.55 km) |
| Caerfyrddin to Conde-sur-l'Escaut | 355.98 mi (572.89 km) |
| Caerfyrddin to Conflans-Sainte-Honorine | 344.29 mi (554.08 km) |
| Caerfyrddin to Corbas | 598.33 mi (962.92 km) |
| Caerfyrddin to Corbeil-Essonnes | 374.50 mi (602.70 km) |
| Caerfyrddin to Cormeilles-en-Parisis | 349.07 mi (561.77 km) |
| Caerfyrddin to Cosne sur Loire | 446.09 mi (717.92 km) |
