| Caerphilly to Cognac | 427.20 mi (687.51 km) |
| Caerphilly to Cogolin | 732.58 mi (1,178.98 km) |
| Caerphilly to Colmar | 528.88 mi (851.15 km) |
| Caerphilly to Colombes | 303.25 mi (488.03 km) |
| Caerphilly to Colomiers | 589.48 mi (948.67 km) |
| Caerphilly to Combs-la-Ville | 325.23 mi (523.41 km) |
| Caerphilly to Comines | 275.47 mi (443.33 km) |
| Caerphilly to Compiegne | 304.55 mi (490.13 km) |
| Caerphilly to Concarneau | 257.74 mi (414.79 km) |
| Caerphilly to Conde-sur-l'Escaut | 305.94 mi (492.36 km) |
| Caerphilly to Conflans-Sainte-Honorine | 294.54 mi (474.01 km) |
| Caerphilly to Corbas | 550.95 mi (886.66 km) |
| Caerphilly to Corbeil-Essonnes | 325.06 mi (523.14 km) |
| Caerphilly to Cormeilles-en-Parisis | 299.27 mi (481.63 km) |
| Caerphilly to Cosne sur Loire | 398.38 mi (641.14 km) |
