| Oer-Erkenschwick to Karlovo | 1,028.67 mi (1,655.48 km) |
| Oer-Erkenschwick to Karnobat | 1,111.32 mi (1,788.50 km) |
| Oer-Erkenschwick to Kavarna | 1,129.26 mi (1,817.37 km) |
| Oer-Erkenschwick to Kazanlak | 1,052.00 mi (1,693.03 km) |
| Oer-Erkenschwick to Knezha | 961.77 mi (1,547.81 km) |
| Oer-Erkenschwick to Kostinbrod | 962.30 mi (1,548.67 km) |
| Oer-Erkenschwick to Kozloduy | 935.69 mi (1,505.85 km) |
| Oer-Erkenschwick to Kyustendil | 969.92 mi (1,560.94 km) |
| Oer-Erkenschwick to Levski | 1,007.46 mi (1,621.35 km) |
| Oer-Erkenschwick to Lom | 915.24 mi (1,472.94 km) |
| Oer-Erkenschwick to Lovech | 1,002.34 mi (1,613.12 km) |
| Oer-Erkenschwick to Lukovit | 978.76 mi (1,575.17 km) |
| Oer-Erkenschwick to Lyaskovets | 1,041.72 mi (1,676.49 km) |
| Oer-Erkenschwick to Mezdra | 963.87 mi (1,551.19 km) |
| Oer-Erkenschwick to Momchilgrad | 1,104.62 mi (1,777.72 km) |
