| Balassagyarmat to Karlovo | 460.87 mi (741.70 km) |
| Balassagyarmat to Karnobat | 529.52 mi (852.17 km) |
| Balassagyarmat to Kavarna | 540.61 mi (870.03 km) |
| Balassagyarmat to Kazanlak | 479.59 mi (771.83 km) |
| Balassagyarmat to Knezha | 391.38 mi (629.87 km) |
| Balassagyarmat to Kostinbrod | 410.14 mi (660.06 km) |
| Balassagyarmat to Kozloduy | 365.35 mi (587.98 km) |
| Balassagyarmat to Kyustendil | 432.99 mi (696.83 km) |
| Balassagyarmat to Levski | 430.23 mi (692.39 km) |
| Balassagyarmat to Lom | 349.51 mi (562.48 km) |
| Balassagyarmat to Lovech | 430.34 mi (692.57 km) |
| Balassagyarmat to Lukovit | 410.94 mi (661.34 km) |
| Balassagyarmat to Lyaskovets | 463.10 mi (745.28 km) |
| Balassagyarmat to Mezdra | 401.47 mi (646.10 km) |
| Balassagyarmat to Momchilgrad | 542.37 mi (872.86 km) |
