| Bad Nenndorf to Karlovo | 979.82 mi (1,576.87 km) |
| Bad Nenndorf to Karnobat | 1,055.89 mi (1,699.30 km) |
| Bad Nenndorf to Kavarna | 1,067.09 mi (1,717.31 km) |
| Bad Nenndorf to Kazanlak | 1,001.36 mi (1,611.53 km) |
| Bad Nenndorf to Knezha | 911.44 mi (1,466.82 km) |
| Bad Nenndorf to Kostinbrod | 918.26 mi (1,477.79 km) |
| Bad Nenndorf to Kozloduy | 885.19 mi (1,424.58 km) |
| Bad Nenndorf to Kyustendil | 930.35 mi (1,497.25 km) |
| Bad Nenndorf to Levski | 954.35 mi (1,535.87 km) |
| Bad Nenndorf to Lom | 866.26 mi (1,394.12 km) |
| Bad Nenndorf to Lovech | 951.61 mi (1,531.47 km) |
| Bad Nenndorf to Lukovit | 929.56 mi (1,495.99 km) |
| Bad Nenndorf to Lyaskovets | 988.01 mi (1,590.05 km) |
| Bad Nenndorf to Mezdra | 916.52 mi (1,474.99 km) |
| Bad Nenndorf to Momchilgrad | 1,058.39 mi (1,703.32 km) |
