| Poperinge to Karnobat | 1,273.32 mi (2,049.22 km) |
| Poperinge to Kavarna | 1,299.64 mi (2,091.56 km) |
| Poperinge to Kazanlak | 1,208.36 mi (1,944.67 km) |
| Poperinge to Knezha | 1,118.87 mi (1,800.64 km) |
| Poperinge to Kostinbrod | 1,111.03 mi (1,788.02 km) |
| Poperinge to Kozloduy | 1,093.39 mi (1,759.65 km) |
| Poperinge to Kyustendil | 1,112.36 mi (1,790.16 km) |
| Poperinge to Levski | 1,167.58 mi (1,879.04 km) |
| Poperinge to Lom | 1,071.27 mi (1,724.04 km) |
| Poperinge to Lovech | 1,159.44 mi (1,865.93 km) |
| Poperinge to Lukovit | 1,134.16 mi (1,825.25 km) |
| Poperinge to Lyaskovets | 1,202.23 mi (1,934.80 km) |
| Poperinge to Mezdra | 1,117.02 mi (1,797.66 km) |
| Poperinge to Momchilgrad | 1,254.38 mi (2,018.73 km) |
| Poperinge to Montana | 1,087.10 mi (1,749.51 km) |
