| Marbach am Neckar to Karlovo | 864.02 mi (1,390.51 km) |
| Marbach am Neckar to Karnobat | 955.78 mi (1,538.17 km) |
| Marbach am Neckar to Kavarna | 985.41 mi (1,585.86 km) |
| Marbach am Neckar to Kazanlak | 889.71 mi (1,431.85 km) |
| Marbach am Neckar to Knezha | 800.47 mi (1,288.23 km) |
| Marbach am Neckar to Kostinbrod | 791.87 mi (1,274.39 km) |
| Marbach am Neckar to Kozloduy | 775.16 mi (1,247.50 km) |
| Marbach am Neckar to Kyustendil | 793.57 mi (1,277.13 km) |
| Marbach am Neckar to Levski | 849.75 mi (1,367.54 km) |
| Marbach am Neckar to Lom | 752.76 mi (1,211.45 km) |
| Marbach am Neckar to Lovech | 840.97 mi (1,353.41 km) |
| Marbach am Neckar to Lukovit | 815.45 mi (1,312.34 km) |
| Marbach am Neckar to Lyaskovets | 884.42 mi (1,423.34 km) |
| Marbach am Neckar to Mezdra | 798.06 mi (1,284.36 km) |
| Marbach am Neckar to Momchilgrad | 935.22 mi (1,505.09 km) |
