| Ludwigshafen to Karlovo | 913.23 mi (1,469.70 km) |
| Ludwigshafen to Karnobat | 1,003.58 mi (1,615.10 km) |
| Ludwigshafen to Kavarna | 1,031.15 mi (1,659.48 km) |
| Ludwigshafen to Kazanlak | 938.56 mi (1,510.47 km) |
| Ludwigshafen to Knezha | 849.03 mi (1,366.39 km) |
| Ludwigshafen to Kostinbrod | 841.90 mi (1,354.91 km) |
| Ludwigshafen to Kozloduy | 823.55 mi (1,325.38 km) |
| Ludwigshafen to Kyustendil | 844.47 mi (1,359.04 km) |
| Ludwigshafen to Levski | 897.78 mi (1,444.83 km) |
| Ludwigshafen to Lom | 801.45 mi (1,289.80 km) |
| Ludwigshafen to Lovech | 889.61 mi (1,431.68 km) |
| Ludwigshafen to Lukovit | 864.38 mi (1,391.08 km) |
| Ludwigshafen to Lyaskovets | 932.43 mi (1,500.59 km) |
| Ludwigshafen to Mezdra | 847.37 mi (1,363.72 km) |
| Ludwigshafen to Momchilgrad | 985.24 mi (1,585.60 km) |
