| Harmanli to Koscielisko | 584.77 mi (941.09 km) |
| Harmanli to Koscierzyna | 916.49 mi (1,474.94 km) |
| Harmanli to Kostrzyn | 828.46 mi (1,333.28 km) |
| Harmanli to Kostrzyn nad Odra | 902.96 mi (1,453.17 km) |
| Harmanli to Koszalin | 956.93 mi (1,540.03 km) |
| Harmanli to Kowary | 776.35 mi (1,249.41 km) |
| Harmanli to Kozienice | 697.27 mi (1,122.14 km) |
| Harmanli to Kozuchow | 833.13 mi (1,340.80 km) |
| Harmanli to Kozy | 636.42 mi (1,024.22 km) |
| Harmanli to Krakow | 629.83 mi (1,013.61 km) |
| Harmanli to Krapkowice | 700.22 mi (1,126.90 km) |
| Harmanli to Krasnik | 644.79 mi (1,037.69 km) |
| Harmanli to Krasnystaw | 638.41 mi (1,027.41 km) |
| Harmanli to Krosno | 571.33 mi (919.47 km) |
| Harmanli to Krosno Odrzanskie | 861.82 mi (1,386.97 km) |
