| Boucau to Ciampino | 724.66 mi (1,166.22 km) |
| Boucau to Cicciano | 836.81 mi (1,346.71 km) |
| Boucau to Cingoli | 736.70 mi (1,185.60 km) |
| Boucau to Cinisello Balsamo | 544.95 mi (877.01 km) |
| Boucau to Cinisi | 845.90 mi (1,361.34 km) |
| Boucau to Cirie | 463.78 mi (746.38 km) |
| Boucau to Ciro Marina | 1,003.41 mi (1,614.83 km) |
| Boucau to Cislago | 534.51 mi (860.20 km) |
| Boucau to Cisterna di Latina | 739.71 mi (1,190.46 km) |
| Boucau to Cisternino | 986.21 mi (1,587.16 km) |
| Boucau to Citta di Castello | 687.48 mi (1,106.39 km) |
| Boucau to Citta Sant'Angelo | 786.76 mi (1,266.17 km) |
| Boucau to Cittadella | 668.46 mi (1,075.78 km) |
| Boucau to Cittanova | 981.88 mi (1,580.19 km) |
| Boucau to Cividale del Friuli | 751.44 mi (1,209.33 km) |
