| Lauffen am Neckar to Karlovo | 872.45 mi (1,404.07 km) |
| Lauffen am Neckar to Karnobat | 963.67 mi (1,550.87 km) |
| Lauffen am Neckar to Kavarna | 992.57 mi (1,597.39 km) |
| Lauffen am Neckar to Kazanlak | 898.00 mi (1,445.19 km) |
| Lauffen am Neckar to Knezha | 808.64 mi (1,301.37 km) |
| Lauffen am Neckar to Kostinbrod | 800.64 mi (1,288.50 km) |
| Lauffen am Neckar to Kozloduy | 783.26 mi (1,260.53 km) |
| Lauffen am Neckar to Kyustendil | 802.74 mi (1,291.89 km) |
| Lauffen am Neckar to Levski | 857.72 mi (1,380.36 km) |
| Lauffen am Neckar to Lom | 760.97 mi (1,224.67 km) |
| Lauffen am Neckar to Lovech | 849.17 mi (1,366.61 km) |
| Lauffen am Neckar to Lukovit | 823.76 mi (1,325.72 km) |
| Lauffen am Neckar to Lyaskovets | 892.38 mi (1,436.15 km) |
| Lauffen am Neckar to Mezdra | 806.53 mi (1,297.98 km) |
| Lauffen am Neckar to Momchilgrad | 943.99 mi (1,519.21 km) |
