| Duzce to Cabestany | 1,452.94 mi (2,338.29 km) |
| Duzce to Cabries | 1,327.44 mi (2,136.31 km) |
| Duzce to Cachan | 1,504.69 mi (2,421.57 km) |
| Duzce to Caen | 1,629.95 mi (2,623.16 km) |
| Duzce to Cagnes-sur-Mer | 1,238.80 mi (1,993.65 km) |
| Duzce to Cahors | 1,522.11 mi (2,449.60 km) |
| Duzce to Calais | 1,558.51 mi (2,508.18 km) |
| Duzce to Caluire-et-Cuire | 1,359.38 mi (2,187.71 km) |
| Duzce to Cambrai | 1,486.21 mi (2,391.82 km) |
| Duzce to Canet-en-Roussillon | 1,449.55 mi (2,332.82 km) |
| Duzce to Cannes | 1,245.53 mi (2,004.49 km) |
| Duzce to Canteleu | 1,570.69 mi (2,527.78 km) |
| Duzce to Capbreton | 1,667.39 mi (2,683.41 km) |
| Duzce to Carcassonne | 1,480.24 mi (2,382.22 km) |
| Duzce to Carmaux | 1,487.23 mi (2,393.47 km) |
