| Cities | Distance |
|---|---|
| Frankfurt to Karlovo | 922.68 mi (1,484.92 km) |
| Frankfurt to Karnobat | 1,009.97 mi (1,625.40 km) |
| Frankfurt to Kavarna | 1,033.83 mi (1,663.80 km) |
| Frankfurt to Kazanlak | 947.21 mi (1,524.38 km) |
| Frankfurt to Knezha | 857.23 mi (1,379.58 km) |
| Frankfurt to Kostinbrod | 853.42 mi (1,373.45 km) |
| Frankfurt to Kozloduy | 831.45 mi (1,338.09 km) |
| Frankfurt to Kyustendil | 858.32 mi (1,381.33 km) |
| Frankfurt to Levski | 904.79 mi (1,456.12 km) |
| Frankfurt to Lom | 810.00 mi (1,303.57 km) |
| Frankfurt to Lovech | 897.88 mi (1,444.99 km) |
| Frankfurt to Lukovit | 873.30 mi (1,405.44 km) |
| Frankfurt to Lyaskovets | 939.34 mi (1,511.73 km) |
| Frankfurt to Mezdra | 857.18 mi (1,379.49 km) |
| Frankfurt to Momchilgrad | 996.51 mi (1,603.73 km) |