| Oud-Heverlee to Karnobat | 1,192.48 mi (1,919.11 km) |
| Oud-Heverlee to Kavarna | 1,217.25 mi (1,958.98 km) |
| Oud-Heverlee to Kazanlak | 1,128.62 mi (1,816.34 km) |
| Oud-Heverlee to Knezha | 1,038.86 mi (1,671.88 km) |
| Oud-Heverlee to Kostinbrod | 1,032.84 mi (1,662.19 km) |
| Oud-Heverlee to Kozloduy | 1,013.23 mi (1,630.63 km) |
| Oud-Heverlee to Kyustendil | 1,035.64 mi (1,666.70 km) |
| Oud-Heverlee to Levski | 1,087.01 mi (1,749.38 km) |
| Oud-Heverlee to Lom | 991.42 mi (1,595.53 km) |
| Oud-Heverlee to Lovech | 1,079.48 mi (1,737.26 km) |
| Oud-Heverlee to Lukovit | 1,054.53 mi (1,697.10 km) |
| Oud-Heverlee to Lyaskovets | 1,121.62 mi (1,805.07 km) |
| Oud-Heverlee to Mezdra | 1,037.85 mi (1,670.25 km) |
| Oud-Heverlee to Momchilgrad | 1,176.15 mi (1,892.84 km) |
| Oud-Heverlee to Montana | 1,007.93 mi (1,622.10 km) |
