| Harmanli to Kamenz | 852.09 mi (1,371.31 km) |
| Harmanli to Kamp-Lintfort | 1,125.05 mi (1,810.59 km) |
| Harmanli to Kandel | 985.74 mi (1,586.40 km) |
| Harmanli to Kappeln | 1,140.01 mi (1,834.66 km) |
| Harmanli to Karben | 997.64 mi (1,605.54 km) |
| Harmanli to Karlsdorf-Neuthard | 972.99 mi (1,565.88 km) |
| Harmanli to Karlsfeld | 825.29 mi (1,328.18 km) |
| Harmanli to Karlsruhe | 975.23 mi (1,569.48 km) |
| Harmanli to Kassel | 1,008.92 mi (1,623.70 km) |
| Harmanli to Kaufbeuren | 850.94 mi (1,369.46 km) |
| Harmanli to Kaufering | 845.61 mi (1,360.87 km) |
| Harmanli to Kaufungen | 1,003.25 mi (1,614.57 km) |
| Harmanli to Kehl | 988.45 mi (1,590.76 km) |
| Harmanli to Kelheim | 832.10 mi (1,339.13 km) |
| Harmanli to Kelkheim (Taunus) | 1,007.01 mi (1,620.62 km) |
