| Romanshorn to Cesky Tesin | 448.80 mi (722.28 km) |
| Romanshorn to Cheb | 221.36 mi (356.25 km) |
| Romanshorn to Chocen | 354.93 mi (571.20 km) |
| Romanshorn to Chodov | 240.58 mi (387.18 km) |
| Romanshorn to Chomutov | 271.84 mi (437.48 km) |
| Romanshorn to Chotebor | 324.37 mi (522.02 km) |
| Romanshorn to Chrudim | 336.35 mi (541.30 km) |
| Romanshorn to Decin | 311.31 mi (501.01 km) |
| Romanshorn to Dobris | 267.60 mi (430.67 km) |
| Romanshorn to Domazlice | 208.63 mi (335.76 km) |
| Romanshorn to Duchcov | 289.03 mi (465.15 km) |
| Romanshorn to Dvur Kralove nad Labem | 353.29 mi (568.56 km) |
| Romanshorn to Frenstat pod Radhostem | 427.21 mi (687.53 km) |
| Romanshorn to Frydek-Mistek | 435.82 mi (701.38 km) |
| Romanshorn to Frydlant nad Ostravici | 434.46 mi (699.20 km) |
