| Monaghan to Karlovo | 1,642.72 mi (2,643.70 km) |
| Monaghan to Karnobat | 1,728.09 mi (2,781.09 km) |
| Monaghan to Kavarna | 1,746.87 mi (2,811.31 km) |
| Monaghan to Kazanlak | 1,666.95 mi (2,682.69 km) |
| Monaghan to Knezha | 1,576.83 mi (2,537.67 km) |
| Monaghan to Kostinbrod | 1,573.51 mi (2,532.33 km) |
| Monaghan to Kozloduy | 1,550.93 mi (2,495.98 km) |
| Monaghan to Kyustendil | 1,577.39 mi (2,538.56 km) |
| Monaghan to Levski | 1,623.61 mi (2,612.94 km) |
| Monaghan to Lom | 1,529.80 mi (2,461.98 km) |
| Monaghan to Lovech | 1,617.48 mi (2,603.08 km) |
| Monaghan to Lukovit | 1,593.20 mi (2,564.00 km) |
| Monaghan to Lyaskovets | 1,658.03 mi (2,668.34 km) |
| Monaghan to Mezdra | 1,577.30 mi (2,538.42 km) |
| Monaghan to Momchilgrad | 1,716.67 mi (2,762.71 km) |
