| Mount Holly to Karlovo | 5,307.73 mi (8,541.97 km) |
| Mount Holly to Karnobat | 5,396.62 mi (8,685.03 km) |
| Mount Holly to Kavarna | 5,416.54 mi (8,717.08 km) |
| Mount Holly to Kazanlak | 5,333.08 mi (8,582.77 km) |
| Mount Holly to Knezha | 5,243.41 mi (8,438.45 km) |
| Mount Holly to Kostinbrod | 5,235.26 mi (8,425.33 km) |
| Mount Holly to Kozloduy | 5,217.79 mi (8,397.23 km) |
| Mount Holly to Kyustendil | 5,234.33 mi (8,423.84 km) |
| Mount Holly to Levski | 5,291.45 mi (8,515.76 km) |
| Mount Holly to Lom | 5,195.92 mi (8,362.02 km) |
| Mount Holly to Lovech | 5,284.02 mi (8,503.81 km) |
| Mount Holly to Lukovit | 5,258.92 mi (8,463.41 km) |
| Mount Holly to Lyaskovets | 5,326.02 mi (8,571.40 km) |
| Mount Holly to Mezdra | 5,241.82 mi (8,435.90 km) |
| Mount Holly to Momchilgrad | 5,378.51 mi (8,655.88 km) |
