| Altenstadt to Karlovo | 918.21 mi (1,477.72 km) |
| Altenstadt to Karnobat | 1,004.35 mi (1,616.34 km) |
| Altenstadt to Kavarna | 1,026.90 mi (1,652.64 km) |
| Altenstadt to Kazanlak | 942.42 mi (1,516.69 km) |
| Altenstadt to Knezha | 852.34 mi (1,371.70 km) |
| Altenstadt to Kostinbrod | 849.76 mi (1,367.55 km) |
| Altenstadt to Kozloduy | 826.46 mi (1,330.07 km) |
| Altenstadt to Kyustendil | 855.54 mi (1,376.86 km) |
| Altenstadt to Levski | 899.44 mi (1,447.51 km) |
| Altenstadt to Lom | 805.27 mi (1,295.96 km) |
| Altenstadt to Lovech | 892.99 mi (1,437.12 km) |
| Altenstadt to Lukovit | 868.66 mi (1,397.98 km) |
| Altenstadt to Lyaskovets | 933.94 mi (1,503.03 km) |
| Altenstadt to Mezdra | 852.87 mi (1,372.56 km) |
| Altenstadt to Momchilgrad | 992.67 mi (1,597.55 km) |
