| Kelsterbach to Karlovo | 927.06 mi (1,491.96 km) |
| Kelsterbach to Karnobat | 1,014.77 mi (1,633.11 km) |
| Kelsterbach to Kavarna | 1,039.09 mi (1,672.26 km) |
| Kelsterbach to Kazanlak | 951.70 mi (1,531.61 km) |
| Kelsterbach to Knezha | 861.76 mi (1,386.88 km) |
| Kelsterbach to Kostinbrod | 857.49 mi (1,380.00 km) |
| Kelsterbach to Kozloduy | 836.02 mi (1,345.44 km) |
| Kelsterbach to Kyustendil | 862.05 mi (1,387.33 km) |
| Kelsterbach to Levski | 909.49 mi (1,463.68 km) |
| Kelsterbach to Lom | 814.48 mi (1,310.78 km) |
| Kelsterbach to Lovech | 902.41 mi (1,452.29 km) |
| Kelsterbach to Lukovit | 877.74 mi (1,412.59 km) |
| Kelsterbach to Lyaskovets | 944.06 mi (1,519.32 km) |
| Kelsterbach to Mezdra | 861.49 mi (1,386.44 km) |
| Kelsterbach to Momchilgrad | 1,000.64 mi (1,610.38 km) |
