| Houthulst to Kalisz | 653.66 mi (1,051.96 km) |
| Houthulst to Kamien Pomorski | 537.94 mi (865.73 km) |
| Houthulst to Kamienna Gora | 569.73 mi (916.89 km) |
| Houthulst to Karczew | 788.14 mi (1,268.38 km) |
| Houthulst to Kartuzy | 678.22 mi (1,091.49 km) |
| Houthulst to Katowice | 704.56 mi (1,133.88 km) |
| Houthulst to Kedzierzyn-Kozle | 668.07 mi (1,075.16 km) |
| Houthulst to Kepno | 651.01 mi (1,047.69 km) |
| Houthulst to Ketrzyn | 801.32 mi (1,289.60 km) |
| Houthulst to Kety | 718.18 mi (1,155.80 km) |
| Houthulst to Kielce | 768.28 mi (1,236.43 km) |
| Houthulst to Kielczow | 616.99 mi (992.95 km) |
| Houthulst to Klobuck | 694.39 mi (1,117.52 km) |
| Houthulst to Klodzko | 599.76 mi (965.22 km) |
| Houthulst to Kluczbork | 662.88 mi (1,066.81 km) |
