| Mainz to Karlovo | 935.07 mi (1,504.85 km) |
| Mainz to Karnobat | 1,023.47 mi (1,647.11 km) |
| Mainz to Kavarna | 1,048.55 mi (1,687.48 km) |
| Mainz to Kazanlak | 959.90 mi (1,544.81 km) |
| Mainz to Knezha | 870.05 mi (1,400.21 km) |
| Mainz to Kostinbrod | 865.01 mi (1,392.11 km) |
| Mainz to Kozloduy | 844.37 mi (1,358.88 km) |
| Mainz to Kyustendil | 869.00 mi (1,398.52 km) |
| Mainz to Levski | 918.04 mi (1,477.45 km) |
| Mainz to Lom | 822.68 mi (1,323.98 km) |
| Mainz to Lovech | 910.69 mi (1,465.61 km) |
| Mainz to Lukovit | 885.87 mi (1,425.67 km) |
| Mainz to Lyaskovets | 952.64 mi (1,533.13 km) |
| Mainz to Mezdra | 869.42 mi (1,399.19 km) |
| Mainz to Momchilgrad | 1,008.24 mi (1,622.61 km) |
