| Duzce to Cognac | 1,608.26 mi (2,588.24 km) |
| Duzce to Cogolin | 1,269.88 mi (2,043.68 km) |
| Duzce to Colmar | 1,269.29 mi (2,042.73 km) |
| Duzce to Colombes | 1,509.94 mi (2,430.01 km) |
| Duzce to Colomiers | 1,529.38 mi (2,461.29 km) |
| Duzce to Combs-la-Ville | 1,492.94 mi (2,402.65 km) |
| Duzce to Comines | 1,506.67 mi (2,424.75 km) |
| Duzce to Compiegne | 1,491.55 mi (2,400.42 km) |
| Duzce to Concarneau | 1,782.65 mi (2,868.90 km) |
| Duzce to Conde-sur-l'Escaut | 1,476.14 mi (2,375.63 km) |
| Duzce to Conflans-Sainte-Honorine | 1,517.77 mi (2,442.62 km) |
| Duzce to Corbas | 1,355.99 mi (2,182.25 km) |
| Duzce to Corbeil-Essonnes | 1,495.74 mi (2,407.17 km) |
| Duzce to Cormeilles-en-Parisis | 1,512.85 mi (2,434.70 km) |
| Duzce to Cosne sur Loire | 1,462.56 mi (2,353.77 km) |
