| Grays to Cognac | 400.43 mi (644.44 km) |
| Grays to Cogolin | 637.38 mi (1,025.76 km) |
| Grays to Colmar | 391.16 mi (629.51 km) |
| Grays to Colombes | 195.70 mi (314.94 km) |
| Grays to Colomiers | 545.16 mi (877.35 km) |
| Grays to Combs-la-Ville | 217.55 mi (350.12 km) |
| Grays to Comines | 126.17 mi (203.05 km) |
| Grays to Compiegne | 179.68 mi (289.17 km) |
| Grays to Concarneau | 312.86 mi (503.49 km) |
| Grays to Conde-sur-l'Escaut | 158.59 mi (255.23 km) |
| Grays to Conflans-Sainte-Honorine | 188.05 mi (302.64 km) |
| Grays to Corbas | 452.18 mi (727.72 km) |
| Grays to Corbeil-Essonnes | 219.51 mi (353.27 km) |
| Grays to Cormeilles-en-Parisis | 191.57 mi (308.31 km) |
| Grays to Cosne sur Loire | 304.03 mi (489.29 km) |
