| Castano Primo to Kalisz | 602.97 mi (970.38 km) |
| Castano Primo to Kamien Pomorski | 640.00 mi (1,029.98 km) |
| Castano Primo to Kamienna Gora | 492.37 mi (792.39 km) |
| Castano Primo to Karczew | 723.80 mi (1,164.84 km) |
| Castano Primo to Kartuzy | 736.34 mi (1,185.02 km) |
| Castano Primo to Katowice | 575.01 mi (925.40 km) |
| Castano Primo to Kedzierzyn-Kozle | 547.54 mi (881.19 km) |
| Castano Primo to Kepno | 578.47 mi (930.95 km) |
| Castano Primo to Ketrzyn | 812.52 mi (1,307.63 km) |
| Castano Primo to Kety | 570.40 mi (917.97 km) |
| Castano Primo to Kielce | 657.44 mi (1,058.04 km) |
| Castano Primo to Kielczow | 545.62 mi (878.09 km) |
| Castano Primo to Klobuck | 596.10 mi (959.34 km) |
| Castano Primo to Klodzko | 496.21 mi (798.57 km) |
| Castano Primo to Kluczbork | 573.52 mi (922.99 km) |
