| Wetzlar to Karlovo | 944.77 mi (1,520.45 km) |
| Wetzlar to Karnobat | 1,030.29 mi (1,658.10 km) |
| Wetzlar to Kavarna | 1,051.98 mi (1,692.99 km) |
| Wetzlar to Kazanlak | 968.83 mi (1,559.18 km) |
| Wetzlar to Knezha | 878.70 mi (1,414.13 km) |
| Wetzlar to Kostinbrod | 876.65 mi (1,410.84 km) |
| Wetzlar to Kozloduy | 852.78 mi (1,372.42 km) |
| Wetzlar to Kyustendil | 882.72 mi (1,420.60 km) |
| Wetzlar to Levski | 925.56 mi (1,489.54 km) |
| Wetzlar to Lom | 831.72 mi (1,338.52 km) |
| Wetzlar to Lovech | 919.34 mi (1,479.54 km) |
| Wetzlar to Lukovit | 895.15 mi (1,440.60 km) |
| Wetzlar to Lyaskovets | 960.02 mi (1,545.00 km) |
| Wetzlar to Mezdra | 879.51 mi (1,415.43 km) |
| Wetzlar to Momchilgrad | 1,019.49 mi (1,640.71 km) |
