| Boucau to Civita Castellana | 707.50 mi (1,138.62 km) |
| Boucau to Civitanova Marche | 763.01 mi (1,227.94 km) |
| Boucau to Civitavecchia | 679.84 mi (1,094.10 km) |
| Boucau to Civitella in Val di Chiana | 661.41 mi (1,064.43 km) |
| Boucau to Clusone | 584.23 mi (940.23 km) |
| Boucau to Coccaglio | 581.34 mi (935.58 km) |
| Boucau to Codigoro | 679.30 mi (1,093.23 km) |
| Boucau to Codogno | 563.98 mi (907.63 km) |
| Boucau to Codroipo | 728.52 mi (1,172.44 km) |
| Boucau to Cogoleto | 507.19 mi (816.24 km) |
| Boucau to Colle di Val d'Elsa | 632.35 mi (1,017.66 km) |
| Boucau to Colle Salvetti | 598.81 mi (963.69 km) |
| Boucau to Collecchio | 585.96 mi (943.01 km) |
| Boucau to Colleferro | 746.60 mi (1,201.54 km) |
| Boucau to Collegno | 460.38 mi (740.91 km) |
