| Heerlen to Kalisz | 525.21 mi (845.24 km) |
| Heerlen to Kamien Pomorski | 426.89 mi (687.02 km) |
| Heerlen to Kamienna Gora | 438.28 mi (705.34 km) |
| Heerlen to Karczew | 660.85 mi (1,063.53 km) |
| Heerlen to Kartuzy | 564.31 mi (908.17 km) |
| Heerlen to Katowice | 572.73 mi (921.71 km) |
| Heerlen to Kedzierzyn-Kozle | 536.23 mi (862.98 km) |
| Heerlen to Kepno | 521.00 mi (838.46 km) |
| Heerlen to Ketrzyn | 683.02 mi (1,099.22 km) |
| Heerlen to Kety | 586.07 mi (943.18 km) |
| Heerlen to Kielce | 637.62 mi (1,026.15 km) |
| Heerlen to Kielczow | 486.51 mi (782.96 km) |
| Heerlen to Klobuck | 563.58 mi (907.00 km) |
| Heerlen to Klodzko | 467.84 mi (752.91 km) |
| Heerlen to Kluczbork | 532.13 mi (856.38 km) |
