| Romanshorn to Karis | 1,037.89 mi (1,670.32 km) |
| Romanshorn to Karkkila | 1,074.55 mi (1,729.32 km) |
| Romanshorn to Kauhajoki | 1,141.30 mi (1,836.74 km) |
| Romanshorn to Kauhava | 1,195.31 mi (1,923.66 km) |
| Romanshorn to Kauniainen | 1,069.69 mi (1,721.50 km) |
| Romanshorn to Kemi | 1,373.52 mi (2,210.47 km) |
| Romanshorn to Kemijarvi | 1,473.99 mi (2,372.16 km) |
| Romanshorn to Kempele | 1,340.53 mi (2,157.37 km) |
| Romanshorn to Kerava | 1,087.50 mi (1,750.16 km) |
| Romanshorn to Keuruu | 1,177.58 mi (1,895.14 km) |
| Romanshorn to Kiiminki | 1,357.51 mi (2,184.70 km) |
| Romanshorn to Kirkkonummi | 1,057.28 mi (1,701.53 km) |
| Romanshorn to Kitee | 1,289.02 mi (2,074.49 km) |
| Romanshorn to Kiuruvesi | 1,290.23 mi (2,076.43 km) |
| Romanshorn to Kivisto | 1,077.74 mi (1,734.46 km) |
