| Kostinbrod to Kalisz | 662.59 mi (1,066.33 km) |
| Kostinbrod to Kamien Pomorski | 861.11 mi (1,385.82 km) |
| Kostinbrod to Kamienna Gora | 646.16 mi (1,039.89 km) |
| Kostinbrod to Karczew | 646.76 mi (1,040.85 km) |
| Kostinbrod to Kartuzy | 827.58 mi (1,331.86 km) |
| Kostinbrod to Katowice | 551.86 mi (888.13 km) |
| Kostinbrod to Kedzierzyn-Kozle | 572.10 mi (920.71 km) |
| Kostinbrod to Kepno | 634.34 mi (1,020.88 km) |
| Kostinbrod to Ketrzyn | 782.90 mi (1,259.95 km) |
| Kostinbrod to Kety | 525.07 mi (845.01 km) |
| Kostinbrod to Kielce | 569.85 mi (917.09 km) |
| Kostinbrod to Kielczow | 641.19 mi (1,031.89 km) |
| Kostinbrod to Klobuck | 594.85 mi (957.32 km) |
| Kostinbrod to Klodzko | 611.03 mi (983.36 km) |
| Kostinbrod to Kluczbork | 611.28 mi (983.77 km) |
