| Efringen-Kirchen to Karlovo | 906.24 mi (1,458.45 km) |
| Efringen-Kirchen to Karnobat | 1,004.60 mi (1,616.74 km) |
| Efringen-Kirchen to Kavarna | 1,042.82 mi (1,678.25 km) |
| Efringen-Kirchen to Kazanlak | 933.68 mi (1,502.61 km) |
| Efringen-Kirchen to Knezha | 846.83 mi (1,362.84 km) |
| Efringen-Kirchen to Kostinbrod | 829.71 mi (1,335.30 km) |
| Efringen-Kirchen to Kozloduy | 822.68 mi (1,323.97 km) |
| Efringen-Kirchen to Kyustendil | 825.04 mi (1,327.77 km) |
| Efringen-Kirchen to Levski | 898.35 mi (1,445.76 km) |
| Efringen-Kirchen to Lom | 799.00 mi (1,285.86 km) |
| Efringen-Kirchen to Lovech | 886.54 mi (1,426.75 km) |
| Efringen-Kirchen to Lukovit | 859.72 mi (1,383.59 km) |
| Efringen-Kirchen to Lyaskovets | 932.81 mi (1,501.21 km) |
| Efringen-Kirchen to Mezdra | 840.34 mi (1,352.40 km) |
| Efringen-Kirchen to Momchilgrad | 971.78 mi (1,563.93 km) |
