| Radolfzell am Bodensee to Koscielisko | 510.57 mi (821.68 km) |
| Radolfzell am Bodensee to Koscierzyna | 589.62 mi (948.91 km) |
| Radolfzell am Bodensee to Kostrzyn | 487.09 mi (783.89 km) |
| Radolfzell am Bodensee to Kostrzyn nad Odra | 419.46 mi (675.06 km) |
| Radolfzell am Bodensee to Koszalin | 545.51 mi (877.91 km) |
| Radolfzell am Bodensee to Kowary | 374.61 mi (602.88 km) |
| Radolfzell am Bodensee to Kozienice | 622.10 mi (1,001.17 km) |
| Radolfzell am Bodensee to Kozuchow | 405.59 mi (652.73 km) |
| Radolfzell am Bodensee to Kozy | 485.87 mi (781.94 km) |
| Radolfzell am Bodensee to Krakow | 523.06 mi (841.78 km) |
| Radolfzell am Bodensee to Krapkowice | 448.42 mi (721.67 km) |
| Radolfzell am Bodensee to Krasnik | 634.85 mi (1,021.69 km) |
| Radolfzell am Bodensee to Krasnystaw | 676.74 mi (1,089.11 km) |
| Radolfzell am Bodensee to Krosno | 597.41 mi (961.44 km) |
| Radolfzell am Bodensee to Krosno Odrzanskie | 403.24 mi (648.95 km) |
