| Seclin to Koscielisko | 753.25 mi (1,212.24 km) |
| Seclin to Koscierzyna | 676.19 mi (1,088.21 km) |
| Seclin to Kostrzyn | 622.93 mi (1,002.50 km) |
| Seclin to Kostrzyn nad Odra | 518.63 mi (834.65 km) |
| Seclin to Koszalin | 608.31 mi (978.98 km) |
| Seclin to Kowary | 560.24 mi (901.62 km) |
| Seclin to Kozienice | 805.88 mi (1,296.94 km) |
| Seclin to Kozuchow | 550.41 mi (885.80 km) |
| Seclin to Kozy | 713.00 mi (1,147.46 km) |
| Seclin to Krakow | 745.28 mi (1,199.42 km) |
| Seclin to Krapkowice | 655.29 mi (1,054.58 km) |
| Seclin to Krasnik | 837.12 mi (1,347.21 km) |
| Seclin to Krasnystaw | 878.51 mi (1,413.83 km) |
| Seclin to Krosno | 829.36 mi (1,334.72 km) |
| Seclin to Krosno Odrzanskie | 530.89 mi (854.39 km) |
