| Bonn to Ciampino | 670.34 mi (1,078.81 km) |
| Bonn to Cicciano | 762.86 mi (1,227.70 km) |
| Bonn to Cingoli | 584.32 mi (940.37 km) |
| Bonn to Cinisello Balsamo | 371.15 mi (597.30 km) |
| Bonn to Cinisi | 916.55 mi (1,475.04 km) |
| Bonn to Cirie | 380.58 mi (612.48 km) |
| Bonn to Ciro Marina | 923.37 mi (1,486.03 km) |
| Bonn to Cislago | 361.56 mi (581.88 km) |
| Bonn to Cisterna di Latina | 688.09 mi (1,107.37 km) |
| Bonn to Cisternino | 850.16 mi (1,368.19 km) |
| Bonn to Citta di Castello | 557.36 mi (896.99 km) |
| Bonn to Citta Sant'Angelo | 655.87 mi (1,055.53 km) |
| Bonn to Cittadella | 411.98 mi (663.02 km) |
| Bonn to Cittanova | 961.55 mi (1,547.47 km) |
| Bonn to Cividale del Friuli | 431.93 mi (695.13 km) |
