| Opwijk to Koscielisko | 703.72 mi (1,132.53 km) |
| Opwijk to Koscierzyna | 618.15 mi (994.81 km) |
| Opwijk to Kostrzyn | 566.43 mi (911.58 km) |
| Opwijk to Kostrzyn nad Odra | 461.49 mi (742.70 km) |
| Opwijk to Koszalin | 550.18 mi (885.44 km) |
| Opwijk to Kowary | 507.50 mi (816.74 km) |
| Opwijk to Kozienice | 750.80 mi (1,208.30 km) |
| Opwijk to Kozuchow | 495.02 mi (796.66 km) |
| Opwijk to Kozy | 662.13 mi (1,065.60 km) |
| Opwijk to Krakow | 693.64 mi (1,116.31 km) |
| Opwijk to Krapkowice | 603.09 mi (970.57 km) |
| Opwijk to Krasnik | 783.16 mi (1,260.37 km) |
| Opwijk to Krasnystaw | 824.31 mi (1,326.59 km) |
| Opwijk to Krosno | 778.07 mi (1,252.18 km) |
| Opwijk to Krosno Odrzanskie | 474.82 mi (764.16 km) |
