| Castricum to Koscielisko | 698.62 mi (1,124.33 km) |
| Castricum to Koscierzyna | 559.11 mi (899.80 km) |
| Castricum to Kostrzyn | 527.88 mi (849.54 km) |
| Castricum to Kostrzyn nad Odra | 419.62 mi (675.32 km) |
| Castricum to Koszalin | 487.60 mi (784.72 km) |
| Castricum to Kowary | 493.11 mi (793.59 km) |
| Castricum to Kozienice | 719.26 mi (1,157.53 km) |
| Castricum to Kozuchow | 466.35 mi (750.51 km) |
| Castricum to Kozy | 652.48 mi (1,050.07 km) |
| Castricum to Krakow | 680.21 mi (1,094.69 km) |
| Castricum to Krapkowice | 588.84 mi (947.65 km) |
| Castricum to Krasnik | 757.47 mi (1,219.03 km) |
| Castricum to Krasnystaw | 796.87 mi (1,282.44 km) |
| Castricum to Krosno | 764.93 mi (1,231.04 km) |
| Castricum to Krosno Odrzanskie | 441.97 mi (711.28 km) |
