| Ostend to Koscielisko | 759.55 mi (1,222.37 km) |
| Ostend to Koscierzyna | 660.50 mi (1,062.97 km) |
| Ostend to Kostrzyn | 615.27 mi (990.18 km) |
| Ostend to Kostrzyn nad Odra | 508.91 mi (819.02 km) |
| Ostend to Koszalin | 590.90 mi (950.97 km) |
| Ostend to Kowary | 561.49 mi (903.63 km) |
| Ostend to Kozienice | 801.93 mi (1,290.58 km) |
| Ostend to Kozuchow | 546.07 mi (878.81 km) |
| Ostend to Kozy | 717.27 mi (1,154.34 km) |
| Ostend to Krakow | 748.26 mi (1,204.21 km) |
| Ostend to Krapkowice | 657.38 mi (1,057.95 km) |
| Ostend to Krasnik | 835.65 mi (1,344.86 km) |
| Ostend to Krasnystaw | 876.49 mi (1,410.58 km) |
| Ostend to Krosno | 832.86 mi (1,340.37 km) |
| Ostend to Krosno Odrzanskie | 524.76 mi (844.52 km) |
