| Mainz to Koscielisko | 521.56 mi (839.37 km) |
| Mainz to Koscierzyna | 501.32 mi (806.80 km) |
| Mainz to Kostrzyn | 421.71 mi (678.67 km) |
| Mainz to Kostrzyn nad Odra | 329.79 mi (530.75 km) |
| Mainz to Koszalin | 444.31 mi (715.04 km) |
| Mainz to Kowary | 337.82 mi (543.68 km) |
| Mainz to Kozienice | 590.56 mi (950.41 km) |
| Mainz to Kozuchow | 342.10 mi (550.55 km) |
| Mainz to Kozy | 483.75 mi (778.51 km) |
| Mainz to Krakow | 517.57 mi (832.96 km) |
| Mainz to Krapkowice | 429.77 mi (691.65 km) |
| Mainz to Krasnik | 616.18 mi (991.64 km) |
| Mainz to Krasnystaw | 658.28 mi (1,059.41 km) |
| Mainz to Krosno | 600.44 mi (966.32 km) |
| Mainz to Krosno Odrzanskie | 328.93 mi (529.37 km) |
