| Kardzhali to Koscielisko | 590.17 mi (949.79 km) |
| Kardzhali to Koscierzyna | 925.61 mi (1,489.62 km) |
| Kardzhali to Kostrzyn | 834.38 mi (1,342.81 km) |
| Kardzhali to Kostrzyn nad Odra | 905.77 mi (1,457.69 km) |
| Kardzhali to Koszalin | 963.89 mi (1,551.23 km) |
| Kardzhali to Kowary | 777.51 mi (1,251.28 km) |
| Kardzhali to Kozienice | 709.37 mi (1,141.62 km) |
| Kardzhali to Kozuchow | 835.74 mi (1,344.99 km) |
| Kardzhali to Kozy | 641.42 mi (1,032.27 km) |
| Kardzhali to Krakow | 636.78 mi (1,024.79 km) |
| Kardzhali to Krapkowice | 704.15 mi (1,133.23 km) |
| Kardzhali to Krasnik | 657.53 mi (1,058.20 km) |
| Kardzhali to Krasnystaw | 653.15 mi (1,051.15 km) |
| Kardzhali to Krosno | 581.69 mi (936.14 km) |
| Kardzhali to Krosno Odrzanskie | 864.25 mi (1,390.88 km) |
