| Romanshorn to Jozefow | 615.08 mi (989.88 km) |
| Romanshorn to Kalisz | 485.47 mi (781.28 km) |
| Romanshorn to Kamien Pomorski | 501.61 mi (807.26 km) |
| Romanshorn to Kamienna Gora | 374.54 mi (602.76 km) |
| Romanshorn to Karczew | 614.20 mi (988.46 km) |
| Romanshorn to Kartuzy | 604.85 mi (973.42 km) |
| Romanshorn to Katowice | 476.29 mi (766.52 km) |
| Romanshorn to Kedzierzyn-Kozle | 444.64 mi (715.58 km) |
| Romanshorn to Kepno | 464.70 mi (747.86 km) |
| Romanshorn to Ketrzyn | 690.10 mi (1,110.61 km) |
| Romanshorn to Kety | 477.04 mi (767.73 km) |
| Romanshorn to Kielce | 557.21 mi (896.75 km) |
| Romanshorn to Kielczow | 429.78 mi (691.66 km) |
| Romanshorn to Klobuck | 489.69 mi (788.08 km) |
| Romanshorn to Klodzko | 385.27 mi (620.03 km) |
