| Harmanli to Kobarid | 679.24 mi (1,093.12 km) |
| Harmanli to Kobilje | 572.57 mi (921.46 km) |
| Harmanli to Kocevje | 606.72 mi (976.42 km) |
| Harmanli to Komen | 661.01 mi (1,063.80 km) |
| Harmanli to Komenda | 635.78 mi (1,023.20 km) |
| Harmanli to Koper | 655.88 mi (1,055.53 km) |
| Harmanli to Kostanjevica na Krki | 586.85 mi (944.44 km) |
| Harmanli to Kostel | 601.15 mi (967.46 km) |
| Harmanli to Kozje | 587.53 mi (945.54 km) |
| Harmanli to Kranj | 644.06 mi (1,036.51 km) |
| Harmanli to Kranjska Gora | 676.33 mi (1,088.45 km) |
| Harmanli to Krizevci | 578.71 mi (931.35 km) |
| Harmanli to Krsko | 587.21 mi (945.02 km) |
| Harmanli to Kuzma | 590.56 mi (950.41 km) |
| Harmanli to Lasko | 603.84 mi (971.78 km) |
