| Bad Zwischenahn to Karlovo | 1,060.69 mi (1,707.02 km) |
| Bad Zwischenahn to Karnobat | 1,135.55 mi (1,827.49 km) |
| Bad Zwischenahn to Kavarna | 1,144.98 mi (1,842.67 km) |
| Bad Zwischenahn to Kazanlak | 1,081.95 mi (1,741.22 km) |
| Bad Zwischenahn to Knezha | 992.15 mi (1,596.71 km) |
| Bad Zwischenahn to Kostinbrod | 999.70 mi (1,608.86 km) |
| Bad Zwischenahn to Kozloduy | 965.89 mi (1,554.45 km) |
| Bad Zwischenahn to Kyustendil | 1,012.08 mi (1,628.78 km) |
| Bad Zwischenahn to Levski | 1,034.55 mi (1,664.95 km) |
| Bad Zwischenahn to Lom | 947.20 mi (1,524.37 km) |
| Bad Zwischenahn to Lovech | 1,032.22 mi (1,661.20 km) |
| Bad Zwischenahn to Lukovit | 1,010.42 mi (1,626.11 km) |
| Bad Zwischenahn to Lyaskovets | 1,068.07 mi (1,718.90 km) |
| Bad Zwischenahn to Mezdra | 997.62 mi (1,605.51 km) |
| Bad Zwischenahn to Momchilgrad | 1,139.55 mi (1,833.93 km) |
