| Aachen to Karlovo | 1,045.50 mi (1,682.57 km) |
| Aachen to Karnobat | 1,133.18 mi (1,823.68 km) |
| Aachen to Kavarna | 1,156.79 mi (1,861.68 km) |
| Aachen to Kazanlak | 1,070.18 mi (1,722.30 km) |
| Aachen to Knezha | 980.26 mi (1,577.57 km) |
| Aachen to Kostinbrod | 975.66 mi (1,570.17 km) |
| Aachen to Kozloduy | 954.52 mi (1,536.14 km) |
| Aachen to Kyustendil | 979.63 mi (1,576.55 km) |
| Aachen to Levski | 1,027.96 mi (1,654.34 km) |
| Aachen to Lom | 932.97 mi (1,501.46 km) |
| Aachen to Lovech | 1,020.90 mi (1,642.99 km) |
| Aachen to Lukovit | 996.22 mi (1,603.25 km) |
| Aachen to Lyaskovets | 1,062.52 mi (1,709.96 km) |
| Aachen to Mezdra | 979.90 mi (1,577.00 km) |
| Aachen to Momchilgrad | 1,118.87 mi (1,800.65 km) |
