| Bollnas to Karlovo | 1,338.41 mi (2,153.97 km) |
| Bollnas to Karnobat | 1,365.24 mi (2,197.14 km) |
| Bollnas to Kavarna | 1,331.31 mi (2,142.54 km) |
| Bollnas to Kazanlak | 1,346.80 mi (2,167.47 km) |
| Bollnas to Knezha | 1,272.95 mi (2,048.62 km) |
| Bollnas to Kostinbrod | 1,311.06 mi (2,109.95 km) |
| Bollnas to Kozloduy | 1,250.27 mi (2,012.12 km) |
| Bollnas to Kyustendil | 1,342.88 mi (2,161.16 km) |
| Bollnas to Levski | 1,293.28 mi (2,081.33 km) |
| Bollnas to Lom | 1,242.68 mi (1,999.90 km) |
| Bollnas to Lovech | 1,304.29 mi (2,099.05 km) |
| Bollnas to Lukovit | 1,294.10 mi (2,082.65 km) |
| Bollnas to Lyaskovets | 1,318.02 mi (2,121.15 km) |
| Bollnas to Mezdra | 1,292.88 mi (2,080.68 km) |
| Bollnas to Momchilgrad | 1,420.02 mi (2,285.30 km) |
