| Caldas de Reyes to Jozefow | 1,530.72 mi (2,463.46 km) |
| Caldas de Reyes to Kalisz | 1,394.28 mi (2,243.88 km) |
| Caldas de Reyes to Kamien Pomorski | 1,322.17 mi (2,127.83 km) |
| Caldas de Reyes to Kamienna Gora | 1,290.41 mi (2,076.71 km) |
| Caldas de Reyes to Karczew | 1,530.60 mi (2,463.27 km) |
| Caldas de Reyes to Kartuzy | 1,458.61 mi (2,347.41 km) |
| Caldas de Reyes to Katowice | 1,409.11 mi (2,267.75 km) |
| Caldas de Reyes to Kedzierzyn-Kozle | 1,375.04 mi (2,212.92 km) |
| Caldas de Reyes to Kepno | 1,381.34 mi (2,223.06 km) |
| Caldas de Reyes to Ketrzyn | 1,573.28 mi (2,531.95 km) |
| Caldas de Reyes to Kety | 1,413.09 mi (2,274.14 km) |
| Caldas de Reyes to Kielce | 1,486.89 mi (2,392.91 km) |
| Caldas de Reyes to Kielczow | 1,345.13 mi (2,164.78 km) |
| Caldas de Reyes to Klobuck | 1,415.08 mi (2,277.35 km) |
| Caldas de Reyes to Klodzko | 1,310.02 mi (2,108.27 km) |
