| Harderwijk to Kalisz | 530.45 mi (853.67 km) |
| Harderwijk to Kamien Pomorski | 395.14 mi (635.92 km) |
| Harderwijk to Kamienna Gora | 459.84 mi (740.05 km) |
| Harderwijk to Karczew | 660.76 mi (1,063.38 km) |
| Harderwijk to Kartuzy | 536.05 mi (862.70 km) |
| Harderwijk to Katowice | 595.45 mi (958.28 km) |
| Harderwijk to Kedzierzyn-Kozle | 559.52 mi (900.45 km) |
| Harderwijk to Kepno | 532.65 mi (857.21 km) |
| Harderwijk to Ketrzyn | 661.75 mi (1,064.98 km) |
| Harderwijk to Kety | 612.52 mi (985.76 km) |
| Harderwijk to Kielce | 651.09 mi (1,047.83 km) |
| Harderwijk to Kielczow | 501.05 mi (806.36 km) |
| Harderwijk to Klobuck | 578.75 mi (931.41 km) |
| Harderwijk to Klodzko | 493.22 mi (793.77 km) |
| Harderwijk to Kluczbork | 547.42 mi (880.99 km) |
