| Bad Hersfeld to Karlovo | 910.16 mi (1,464.76 km) |
| Bad Hersfeld to Karnobat | 992.41 mi (1,597.12 km) |
| Bad Hersfeld to Kavarna | 1,010.65 mi (1,626.48 km) |
| Bad Hersfeld to Kazanlak | 933.32 mi (1,502.04 km) |
| Bad Hersfeld to Knezha | 843.08 mi (1,356.81 km) |
| Bad Hersfeld to Kostinbrod | 844.47 mi (1,359.04 km) |
| Bad Hersfeld to Kozloduy | 816.98 mi (1,314.81 km) |
| Bad Hersfeld to Kyustendil | 853.05 mi (1,372.85 km) |
| Bad Hersfeld to Levski | 888.60 mi (1,430.06 km) |
| Bad Hersfeld to Lom | 796.67 mi (1,282.11 km) |
| Bad Hersfeld to Lovech | 883.64 mi (1,422.08 km) |
| Bad Hersfeld to Lukovit | 860.20 mi (1,384.36 km) |
| Bad Hersfeld to Lyaskovets | 922.85 mi (1,485.18 km) |
| Bad Hersfeld to Mezdra | 845.52 mi (1,360.73 km) |
| Bad Hersfeld to Momchilgrad | 986.51 mi (1,587.63 km) |
