| Sundern to Karlovo | 989.48 mi (1,592.41 km) |
| Sundern to Karnobat | 1,072.44 mi (1,725.93 km) |
| Sundern to Kavarna | 1,090.96 mi (1,755.73 km) |
| Sundern to Kazanlak | 1,012.87 mi (1,630.06 km) |
| Sundern to Knezha | 922.64 mi (1,484.85 km) |
| Sundern to Kostinbrod | 923.01 mi (1,485.44 km) |
| Sundern to Kozloduy | 896.58 mi (1,442.91 km) |
| Sundern to Kyustendil | 930.62 mi (1,497.70 km) |
| Sundern to Levski | 968.46 mi (1,558.59 km) |
| Sundern to Lom | 876.07 mi (1,409.90 km) |
| Sundern to Lovech | 963.23 mi (1,550.17 km) |
| Sundern to Lukovit | 939.59 mi (1,512.13 km) |
| Sundern to Lyaskovets | 1,002.75 mi (1,613.78 km) |
| Sundern to Mezdra | 924.64 mi (1,488.06 km) |
| Sundern to Momchilgrad | 1,065.36 mi (1,714.52 km) |
