| Donaueschingen to Karlovo | 870.91 mi (1,401.60 km) |
| Donaueschingen to Karnobat | 967.48 mi (1,557.02 km) |
| Donaueschingen to Kavarna | 1,003.37 mi (1,614.78 km) |
| Donaueschingen to Kazanlak | 897.88 mi (1,444.99 km) |
| Donaueschingen to Knezha | 810.19 mi (1,303.87 km) |
| Donaueschingen to Kostinbrod | 795.57 mi (1,280.34 km) |
| Donaueschingen to Kozloduy | 785.66 mi (1,264.40 km) |
| Donaueschingen to Kyustendil | 792.87 mi (1,275.99 km) |
| Donaueschingen to Levski | 861.16 mi (1,385.90 km) |
| Donaueschingen to Lom | 762.30 mi (1,226.80 km) |
| Donaueschingen to Lovech | 850.20 mi (1,368.26 km) |
| Donaueschingen to Lukovit | 823.71 mi (1,325.64 km) |
| Donaueschingen to Lyaskovets | 895.72 mi (1,441.53 km) |
| Donaueschingen to Mezdra | 804.88 mi (1,295.34 km) |
| Donaueschingen to Momchilgrad | 938.27 mi (1,510.00 km) |
