| Runkel to Karlovo | 952.78 mi (1,533.36 km) |
| Runkel to Karnobat | 1,039.50 mi (1,672.91 km) |
| Runkel to Kavarna | 1,062.49 mi (1,709.92 km) |
| Runkel to Kazanlak | 977.17 mi (1,572.60 km) |
| Runkel to Knezha | 887.13 mi (1,427.70 km) |
| Runkel to Kostinbrod | 883.83 mi (1,422.39 km) |
| Runkel to Kozloduy | 861.31 mi (1,386.14 km) |
| Runkel to Kyustendil | 888.99 mi (1,430.68 km) |
| Runkel to Levski | 934.46 mi (1,503.87 km) |
| Runkel to Lom | 839.98 mi (1,351.81 km) |
| Runkel to Lovech | 927.78 mi (1,493.12 km) |
| Runkel to Lukovit | 903.33 mi (1,453.76 km) |
| Runkel to Lyaskovets | 968.99 mi (1,559.43 km) |
| Runkel to Mezdra | 887.34 mi (1,428.04 km) |
| Runkel to Momchilgrad | 1,026.87 mi (1,652.58 km) |
