| Bolbec to Karlovo | 1,253.13 mi (2,016.72 km) |
| Bolbec to Karnobat | 1,348.89 mi (2,170.83 km) |
| Bolbec to Kavarna | 1,382.02 mi (2,224.14 km) |
| Bolbec to Kazanlak | 1,279.98 mi (2,059.92 km) |
| Bolbec to Knezha | 1,191.98 mi (1,918.30 km) |
| Bolbec to Kostinbrod | 1,177.79 mi (1,895.47 km) |
| Bolbec to Kozloduy | 1,167.25 mi (1,878.51 km) |
| Bolbec to Kyustendil | 1,174.38 mi (1,889.99 km) |
| Bolbec to Levski | 1,242.57 mi (1,999.73 km) |
| Bolbec to Lom | 1,144.09 mi (1,841.24 km) |
| Bolbec to Lovech | 1,232.11 mi (1,982.89 km) |
| Bolbec to Lukovit | 1,205.76 mi (1,940.49 km) |
| Bolbec to Lyaskovets | 1,277.19 mi (2,055.44 km) |
| Bolbec to Mezdra | 1,187.09 mi (1,910.43 km) |
| Bolbec to Momchilgrad | 1,320.38 mi (2,124.95 km) |
