| Kardzhali to Kamenz | 851.86 mi (1,370.93 km) |
| Kardzhali to Kamp-Lintfort | 1,118.44 mi (1,799.95 km) |
| Kardzhali to Kandel | 975.49 mi (1,569.90 km) |
| Kardzhali to Kappeln | 1,141.21 mi (1,836.59 km) |
| Kardzhali to Karben | 990.12 mi (1,593.45 km) |
| Kardzhali to Karlsdorf-Neuthard | 963.07 mi (1,549.91 km) |
| Kardzhali to Karlsfeld | 815.45 mi (1,312.34 km) |
| Kardzhali to Karlsruhe | 964.95 mi (1,552.94 km) |
| Kardzhali to Kassel | 1,004.10 mi (1,615.94 km) |
| Kardzhali to Kaufbeuren | 839.63 mi (1,351.25 km) |
| Kardzhali to Kaufering | 834.97 mi (1,343.76 km) |
| Kardzhali to Kaufungen | 998.46 mi (1,606.87 km) |
| Kardzhali to Kehl | 976.90 mi (1,572.16 km) |
| Kardzhali to Kelheim | 824.29 mi (1,326.56 km) |
| Kardzhali to Kelkheim (Taunus) | 999.08 mi (1,607.86 km) |
