| Montabaur to Karlovo | 966.66 mi (1,555.69 km) |
| Montabaur to Karnobat | 1,053.67 mi (1,695.71 km) |
| Montabaur to Kavarna | 1,076.92 mi (1,733.14 km) |
| Montabaur to Kazanlak | 991.13 mi (1,595.07 km) |
| Montabaur to Knezha | 901.12 mi (1,450.22 km) |
| Montabaur to Kostinbrod | 897.47 mi (1,444.33 km) |
| Montabaur to Kozloduy | 875.32 mi (1,408.69 km) |
| Montabaur to Kyustendil | 902.33 mi (1,452.16 km) |
| Montabaur to Levski | 948.57 mi (1,526.57 km) |
| Montabaur to Lom | 853.93 mi (1,374.26 km) |
| Montabaur to Lovech | 941.77 mi (1,515.64 km) |
| Montabaur to Lukovit | 917.25 mi (1,476.17 km) |
| Montabaur to Lyaskovets | 983.11 mi (1,582.15 km) |
| Montabaur to Mezdra | 901.17 mi (1,450.30 km) |
| Montabaur to Momchilgrad | 1,040.55 mi (1,674.61 km) |
