| Kardzhali to Kalisz | 778.12 mi (1,252.26 km) |
| Kardzhali to Kamien Pomorski | 980.58 mi (1,578.09 km) |
| Kardzhali to Kamienna Gora | 771.56 mi (1,241.70 km) |
| Kardzhali to Karczew | 746.33 mi (1,201.10 km) |
| Kardzhali to Kartuzy | 935.73 mi (1,505.90 km) |
| Kardzhali to Katowice | 668.35 mi (1,075.60 km) |
| Kardzhali to Kedzierzyn-Kozle | 691.82 mi (1,113.38 km) |
| Kardzhali to Kepno | 751.75 mi (1,209.83 km) |
| Kardzhali to Ketrzyn | 878.32 mi (1,413.51 km) |
| Kardzhali to Kety | 641.94 mi (1,033.10 km) |
| Kardzhali to Kielce | 675.89 mi (1,087.74 km) |
| Kardzhali to Kielczow | 761.97 mi (1,226.28 km) |
| Kardzhali to Klobuck | 709.49 mi (1,141.81 km) |
| Kardzhali to Klodzko | 735.82 mi (1,184.19 km) |
| Kardzhali to Kluczbork | 728.76 mi (1,172.83 km) |
