| Romanshorn to Kamen | 288.43 mi (464.18 km) |
| Romanshorn to Kamenz | 332.92 mi (535.79 km) |
| Romanshorn to Kamp-Lintfort | 299.95 mi (482.72 km) |
| Romanshorn to Kandel | 117.68 mi (189.39 km) |
| Romanshorn to Kappeln | 491.05 mi (790.26 km) |
| Romanshorn to Karben | 186.31 mi (299.84 km) |
| Romanshorn to Karlsdorf-Neuthard | 114.90 mi (184.91 km) |
| Romanshorn to Karlsfeld | 107.68 mi (173.30 km) |
| Romanshorn to Karlsruhe | 109.06 mi (175.52 km) |
| Romanshorn to Kassel | 259.34 mi (417.36 km) |
| Romanshorn to Kaufbeuren | 62.78 mi (101.04 km) |
| Romanshorn to Kaufering | 79.42 mi (127.81 km) |
| Romanshorn to Kaufungen | 257.13 mi (413.81 km) |
| Romanshorn to Kehl | 99.29 mi (159.79 km) |
| Romanshorn to Kelheim | 148.60 mi (239.15 km) |
