| Romanshorn to Chivasso | 178.25 mi (286.86 km) |
| Romanshorn to Ciampino | 428.82 mi (690.11 km) |
| Romanshorn to Cicciano | 522.55 mi (840.96 km) |
| Romanshorn to Cingoli | 344.97 mi (555.18 km) |
| Romanshorn to Cinisello Balsamo | 139.28 mi (224.15 km) |
| Romanshorn to Cinisi | 676.15 mi (1,088.16 km) |
| Romanshorn to Cirie | 181.31 mi (291.79 km) |
| Romanshorn to Ciro Marina | 686.54 mi (1,104.88 km) |
| Romanshorn to Cislago | 133.50 mi (214.84 km) |
| Romanshorn to Cisterna di Latina | 446.53 mi (718.62 km) |
| Romanshorn to Cisternino | 618.22 mi (994.93 km) |
| Romanshorn to Citta di Castello | 316.01 mi (508.57 km) |
| Romanshorn to Citta Sant'Angelo | 417.07 mi (671.22 km) |
| Romanshorn to Cittadella | 175.34 mi (282.18 km) |
| Romanshorn to Cittanova | 721.11 mi (1,160.51 km) |
