| Castle Rock to Cognac | 4,934.74 mi (7,941.69 km) |
| Castle Rock to Cogolin | 5,301.97 mi (8,532.70 km) |
| Castle Rock to Colmar | 5,107.85 mi (8,220.29 km) |
| Castle Rock to Colombes | 4,891.89 mi (7,872.74 km) |
| Castle Rock to Colomiers | 5,088.46 mi (8,189.09 km) |
| Castle Rock to Combs-la-Ville | 4,913.77 mi (7,907.96 km) |
| Castle Rock to Comines | 4,839.19 mi (7,787.92 km) |
| Castle Rock to Compiegne | 4,890.84 mi (7,871.05 km) |
| Castle Rock to Concarneau | 4,708.68 mi (7,577.90 km) |
| Castle Rock to Conde-sur-l'Escaut | 4,872.61 mi (7,841.70 km) |
| Castle Rock to Conflans-Sainte-Honorine | 4,883.17 mi (7,858.71 km) |
| Castle Rock to Corbas | 5,131.11 mi (8,257.73 km) |
| Castle Rock to Corbeil-Essonnes | 4,913.43 mi (7,907.39 km) |
| Castle Rock to Cormeilles-en-Parisis | 4,887.92 mi (7,866.35 km) |
| Castle Rock to Cosne sur Loire | 4,981.71 mi (8,017.29 km) |
