| Castel Gandolfo to Cognac | 702.23 mi (1,130.13 km) |
| Castel Gandolfo to Cogolin | 328.66 mi (528.92 km) |
| Castel Gandolfo to Colmar | 508.36 mi (818.13 km) |
| Castel Gandolfo to Colombes | 706.61 mi (1,137.18 km) |
| Castel Gandolfo to Colomiers | 588.53 mi (947.15 km) |
| Castel Gandolfo to Combs-la-Ville | 684.57 mi (1,101.71 km) |
| Castel Gandolfo to Comines | 773.34 mi (1,244.58 km) |
| Castel Gandolfo to Compiegne | 710.59 mi (1,143.58 km) |
| Castel Gandolfo to Concarneau | 913.38 mi (1,469.95 km) |
| Castel Gandolfo to Conde-sur-l'Escaut | 740.45 mi (1,191.63 km) |
| Castel Gandolfo to Conflans-Sainte-Honorine | 715.31 mi (1,151.18 km) |
| Castel Gandolfo to Corbas | 472.13 mi (759.82 km) |
| Castel Gandolfo to Corbeil-Essonnes | 684.78 mi (1,102.05 km) |
| Castel Gandolfo to Cormeilles-en-Parisis | 710.63 mi (1,143.64 km) |
| Castel Gandolfo to Cosne sur Loire | 617.47 mi (993.73 km) |
