| Romanshorn to Kocaeli | 1,117.71 mi (1,798.79 km) |
| Romanshorn to Konak | 1,093.96 mi (1,760.55 km) |
| Romanshorn to Konakli | 1,374.23 mi (2,211.61 km) |
| Romanshorn to Konya | 1,344.20 mi (2,163.28 km) |
| Romanshorn to Koprukoy | 1,690.59 mi (2,720.74 km) |
| Romanshorn to Korfez | 1,108.76 mi (1,784.38 km) |
| Romanshorn to Korkut | 1,729.30 mi (2,783.05 km) |
| Romanshorn to Kose | 1,580.00 mi (2,542.76 km) |
| Romanshorn to Kovancilar | 1,641.86 mi (2,642.32 km) |
| Romanshorn to Koyulhisar | 1,492.83 mi (2,402.47 km) |
| Romanshorn to Kozan | 1,507.00 mi (2,425.28 km) |
| Romanshorn to Kozlu | 1,176.93 mi (1,894.08 km) |
| Romanshorn to Kozluk | 1,735.67 mi (2,793.29 km) |
| Romanshorn to Kucuk Dalyan | 1,574.60 mi (2,534.08 km) |
| Romanshorn to Kucukcekmece | 1,059.45 mi (1,705.02 km) |
