| Bergisch Gladbach to Karlovo | 1,011.37 mi (1,627.64 km) |
| Bergisch Gladbach to Karnobat | 1,096.93 mi (1,765.33 km) |
| Bergisch Gladbach to Kavarna | 1,118.24 mi (1,799.63 km) |
| Bergisch Gladbach to Kazanlak | 1,035.47 mi (1,666.43 km) |
| Bergisch Gladbach to Knezha | 945.35 mi (1,521.39 km) |
| Bergisch Gladbach to Kostinbrod | 943.05 mi (1,517.69 km) |
| Bergisch Gladbach to Kozloduy | 919.44 mi (1,479.69 km) |
| Bergisch Gladbach to Kyustendil | 948.74 mi (1,526.84 km) |
| Bergisch Gladbach to Levski | 992.21 mi (1,596.81 km) |
| Bergisch Gladbach to Lom | 898.35 mi (1,445.75 km) |
| Bergisch Gladbach to Lovech | 985.99 mi (1,586.80 km) |
| Bergisch Gladbach to Lukovit | 961.77 mi (1,547.82 km) |
| Bergisch Gladbach to Lyaskovets | 1,026.67 mi (1,652.27 km) |
| Bergisch Gladbach to Mezdra | 946.08 mi (1,522.56 km) |
| Bergisch Gladbach to Momchilgrad | 1,085.95 mi (1,747.67 km) |
