| Boortmeerbeek to Kalisz | 584.48 mi (940.63 km) |
| Boortmeerbeek to Kamien Pomorski | 475.91 mi (765.91 km) |
| Boortmeerbeek to Kamienna Gora | 499.53 mi (803.91 km) |
| Boortmeerbeek to Karczew | 719.46 mi (1,157.85 km) |
| Boortmeerbeek to Kartuzy | 615.22 mi (990.09 km) |
| Boortmeerbeek to Katowice | 634.28 mi (1,020.78 km) |
| Boortmeerbeek to Kedzierzyn-Kozle | 597.79 mi (962.05 km) |
| Boortmeerbeek to Kepno | 581.26 mi (935.45 km) |
| Boortmeerbeek to Ketrzyn | 736.50 mi (1,185.28 km) |
| Boortmeerbeek to Kety | 647.88 mi (1,042.67 km) |
| Boortmeerbeek to Kielce | 698.33 mi (1,123.86 km) |
| Boortmeerbeek to Kielczow | 547.08 mi (880.44 km) |
| Boortmeerbeek to Klobuck | 624.39 mi (1,004.85 km) |
| Boortmeerbeek to Klodzko | 529.47 mi (852.09 km) |
| Boortmeerbeek to Kluczbork | 592.89 mi (954.17 km) |
