| Kardzhali to Knurow | 672.77 mi (1,082.73 km) |
| Kardzhali to Kobylka | 763.49 mi (1,228.71 km) |
| Kardzhali to Kokoszki | 932.46 mi (1,500.65 km) |
| Kardzhali to Kolbuszowa | 618.66 mi (995.64 km) |
| Kardzhali to Kolno | 827.96 mi (1,332.47 km) |
| Kardzhali to Kolo | 794.34 mi (1,278.36 km) |
| Kardzhali to Kolobrzeg | 974.93 mi (1,569.01 km) |
| Kardzhali to Koluszki | 745.48 mi (1,199.74 km) |
| Kardzhali to Komorniki | 838.35 mi (1,349.19 km) |
| Kardzhali to Konin | 802.34 mi (1,291.24 km) |
| Kardzhali to Konskie | 700.28 mi (1,126.99 km) |
| Kardzhali to Konstancin-Jeziorna | 747.97 mi (1,203.74 km) |
| Kardzhali to Konstantynow Lodzki | 753.49 mi (1,212.63 km) |
| Kardzhali to Koronowo | 876.50 mi (1,410.59 km) |
| Kardzhali to Koscian | 828.83 mi (1,333.87 km) |
