| Rockville Centre to Cognac | 3,578.58 mi (5,759.17 km) |
| Rockville Centre to Cogolin | 3,956.22 mi (6,366.92 km) |
| Rockville Centre to Colmar | 3,845.26 mi (6,188.35 km) |
| Rockville Centre to Colombes | 3,607.62 mi (5,805.90 km) |
| Rockville Centre to Colomiers | 3,711.06 mi (5,972.38 km) |
| Rockville Centre to Combs-la-Ville | 3,627.09 mi (5,837.24 km) |
| Rockville Centre to Comines | 3,593.58 mi (5,783.32 km) |
| Rockville Centre to Compiegne | 3,619.23 mi (5,824.59 km) |
| Rockville Centre to Concarneau | 3,366.66 mi (5,418.11 km) |
| Rockville Centre to Conde-sur-l'Escaut | 3,625.13 mi (5,834.09 km) |
| Rockville Centre to Conflans-Sainte-Honorine | 3,599.21 mi (5,792.37 km) |
| Rockville Centre to Corbas | 3,810.51 mi (6,132.43 km) |
| Rockville Centre to Corbeil-Essonnes | 3,625.23 mi (5,834.24 km) |
| Rockville Centre to Cormeilles-en-Parisis | 3,604.20 mi (5,800.40 km) |
| Rockville Centre to Cosne sur Loire | 3,675.76 mi (5,915.57 km) |
