| Romanshorn to Cervignano del Friuli | 223.59 mi (359.83 km) |
| Romanshorn to Cesa | 515.47 mi (829.57 km) |
| Romanshorn to Cesano Maderno | 133.92 mi (215.52 km) |
| Romanshorn to Cesena | 274.37 mi (441.55 km) |
| Romanshorn to Cesenatico | 274.47 mi (441.71 km) |
| Romanshorn to Cetraro | 647.12 mi (1,041.44 km) |
| Romanshorn to Cherasco | 213.57 mi (343.70 km) |
| Romanshorn to Chiampo | 166.53 mi (268.00 km) |
| Romanshorn to Chiaravalle | 334.53 mi (538.38 km) |
| Romanshorn to Chiari | 143.41 mi (230.80 km) |
| Romanshorn to Chiavari | 224.33 mi (361.03 km) |
| Romanshorn to Chieri | 190.77 mi (307.01 km) |
| Romanshorn to Chieti | 430.00 mi (692.02 km) |
| Romanshorn to Chioggia | 213.57 mi (343.70 km) |
| Romanshorn to Chiusi | 338.45 mi (544.69 km) |
