| Kelso to Karlovo | 5,991.10 mi (9,641.74 km) |
| Kelso to Karnobat | 6,031.54 mi (9,706.83 km) |
| Kelso to Kavarna | 6,002.85 mi (9,660.66 km) |
| Kelso to Kazanlak | 6,003.91 mi (9,662.37 km) |
| Kelso to Knezha | 5,922.55 mi (9,531.42 km) |
| Kelso to Kostinbrod | 5,949.42 mi (9,574.67 km) |
| Kelso to Kozloduy | 5,897.78 mi (9,491.56 km) |
| Kelso to Kyustendil | 5,972.77 mi (9,612.24 km) |
| Kelso to Levski | 5,950.76 mi (9,576.82 km) |
| Kelso to Lom | 5,885.56 mi (9,471.90 km) |
| Kelso to Lovech | 5,957.90 mi (9,588.32 km) |
| Kelso to Lukovit | 5,943.32 mi (9,564.85 km) |
| Kelso to Lyaskovets | 5,978.63 mi (9,621.67 km) |
| Kelso to Mezdra | 5,937.57 mi (9,555.60 km) |
| Kelso to Momchilgrad | 6,073.93 mi (9,775.04 km) |
