| Romanshorn to Isparta | 1,265.86 mi (2,037.21 km) |
| Romanshorn to Istanbul | 1,065.82 mi (1,715.28 km) |
| Romanshorn to Izmir | 1,094.38 mi (1,761.23 km) |
| Romanshorn to Kadinhani | 1,316.89 mi (2,119.32 km) |
| Romanshorn to Kadirli | 1,523.58 mi (2,451.96 km) |
| Romanshorn to Kagithane | 1,064.22 mi (1,712.69 km) |
| Romanshorn to Kahramanmaras | 1,552.15 mi (2,497.94 km) |
| Romanshorn to Kahta | 1,620.43 mi (2,607.83 km) |
| Romanshorn to Kaman | 1,339.68 mi (2,156.01 km) |
| Romanshorn to Kangal | 1,509.87 mi (2,429.90 km) |
| Romanshorn to Kapakli | 1,010.47 mi (1,626.19 km) |
| Romanshorn to Karaagac | 1,558.28 mi (2,507.82 km) |
| Romanshorn to Karaagac | 1,010.93 mi (1,626.94 km) |
| Romanshorn to Karabuk | 1,224.60 mi (1,970.80 km) |
| Romanshorn to Karahalli | 1,197.87 mi (1,927.78 km) |
