| Ludinghausen to Karlovo | 1,026.33 mi (1,651.72 km) |
| Ludinghausen to Karnobat | 1,108.20 mi (1,783.47 km) |
| Ludinghausen to Kavarna | 1,125.27 mi (1,810.95 km) |
| Ludinghausen to Kazanlak | 1,049.45 mi (1,688.93 km) |
| Ludinghausen to Knezha | 959.22 mi (1,543.71 km) |
| Ludinghausen to Kostinbrod | 960.52 mi (1,545.81 km) |
| Ludinghausen to Kozloduy | 933.11 mi (1,501.69 km) |
| Ludinghausen to Kyustendil | 968.69 mi (1,558.95 km) |
| Ludinghausen to Levski | 1,004.58 mi (1,616.72 km) |
| Ludinghausen to Lom | 912.83 mi (1,469.06 km) |
| Ludinghausen to Lovech | 999.76 mi (1,608.96 km) |
| Ludinghausen to Lukovit | 976.36 mi (1,571.30 km) |
| Ludinghausen to Lyaskovets | 1,038.79 mi (1,671.77 km) |
| Ludinghausen to Mezdra | 961.68 mi (1,547.68 km) |
| Ludinghausen to Momchilgrad | 1,102.64 mi (1,774.53 km) |
