| Oldenburg to Karlovo | 1,052.27 mi (1,693.47 km) |
| Oldenburg to Karnobat | 1,126.94 mi (1,813.63 km) |
| Oldenburg to Kavarna | 1,136.22 mi (1,828.57 km) |
| Oldenburg to Kazanlak | 1,073.47 mi (1,727.58 km) |
| Oldenburg to Knezha | 983.70 mi (1,583.11 km) |
| Oldenburg to Kostinbrod | 991.44 mi (1,595.58 km) |
| Oldenburg to Kozloduy | 957.44 mi (1,540.85 km) |
| Oldenburg to Kyustendil | 1,003.98 mi (1,615.74 km) |
| Oldenburg to Levski | 1,026.02 mi (1,651.21 km) |
| Oldenburg to Lom | 938.79 mi (1,510.84 km) |
| Oldenburg to Lovech | 1,023.75 mi (1,647.57 km) |
| Oldenburg to Lukovit | 1,002.00 mi (1,612.56 km) |
| Oldenburg to Lyaskovets | 1,059.52 mi (1,705.13 km) |
| Oldenburg to Mezdra | 989.26 mi (1,592.06 km) |
| Oldenburg to Momchilgrad | 1,131.20 mi (1,820.49 km) |
