| Opmeer to Koscielisko | 689.47 mi (1,109.59 km) |
| Opmeer to Koscierzyna | 544.83 mi (876.82 km) |
| Opmeer to Kostrzyn | 515.44 mi (829.52 km) |
| Opmeer to Kostrzyn nad Odra | 407.12 mi (655.20 km) |
| Opmeer to Koszalin | 473.14 mi (761.45 km) |
| Opmeer to Kowary | 483.35 mi (777.88 km) |
| Opmeer to Kozienice | 707.22 mi (1,138.15 km) |
| Opmeer to Kozuchow | 455.07 mi (732.37 km) |
| Opmeer to Kozy | 642.88 mi (1,034.62 km) |
| Opmeer to Krakow | 670.13 mi (1,078.47 km) |
| Opmeer to Krapkowice | 578.85 mi (931.56 km) |
| Opmeer to Krasnik | 745.98 mi (1,200.53 km) |
| Opmeer to Krasnystaw | 785.15 mi (1,263.58 km) |
| Opmeer to Krosno | 754.76 mi (1,214.67 km) |
| Opmeer to Krosno Odrzanskie | 430.32 mi (692.54 km) |
