| Romanshorn to Brezovica | 262.02 mi (421.68 km) |
| Romanshorn to Cankova | 318.35 mi (512.33 km) |
| Romanshorn to Celje | 293.66 mi (472.61 km) |
| Romanshorn to Cerklje na Gorenjskem | 258.53 mi (416.07 km) |
| Romanshorn to Cerknica | 266.61 mi (429.07 km) |
| Romanshorn to Cerkno | 240.39 mi (386.87 km) |
| Romanshorn to Cerkvenjak | 317.45 mi (510.89 km) |
| Romanshorn to Cirkulane | 324.08 mi (521.56 km) |
| Romanshorn to Crensovci | 333.42 mi (536.59 km) |
| Romanshorn to Crna na Koroskem | 269.48 mi (433.69 km) |
| Romanshorn to Crnomelj | 309.26 mi (497.70 km) |
| Romanshorn to Destrnik | 315.93 mi (508.44 km) |
| Romanshorn to Divaca | 254.56 mi (409.68 km) |
| Romanshorn to Dobje | 301.77 mi (485.65 km) |
| Romanshorn to Dobrna | 289.56 mi (466.00 km) |
