| Opglabbeek to Karnobat | 1,160.44 mi (1,867.55 km) |
| Opglabbeek to Kavarna | 1,183.27 mi (1,904.28 km) |
| Opglabbeek to Kazanlak | 1,097.85 mi (1,766.82 km) |
| Opglabbeek to Knezha | 1,007.87 mi (1,622.01 km) |
| Opglabbeek to Kostinbrod | 1,003.76 mi (1,615.40 km) |
| Opglabbeek to Kozloduy | 982.08 mi (1,580.50 km) |
| Opglabbeek to Kyustendil | 1,008.01 mi (1,622.24 km) |
| Opglabbeek to Levski | 1,055.35 mi (1,698.42 km) |
| Opglabbeek to Lom | 960.64 mi (1,546.00 km) |
| Opglabbeek to Lovech | 1,048.52 mi (1,687.42 km) |
| Opglabbeek to Lukovit | 1,023.94 mi (1,647.87 km) |
| Opglabbeek to Lyaskovets | 1,089.89 mi (1,754.01 km) |
| Opglabbeek to Mezdra | 1,007.76 mi (1,621.84 km) |
| Opglabbeek to Momchilgrad | 1,146.93 mi (1,845.80 km) |
| Opglabbeek to Montana | 977.87 mi (1,573.73 km) |
