| Martinsburg to Karlovo | 4,992.08 mi (8,033.98 km) |
| Martinsburg to Karnobat | 5,079.27 mi (8,174.29 km) |
| Martinsburg to Kavarna | 5,097.16 mi (8,203.08 km) |
| Martinsburg to Kazanlak | 5,016.99 mi (8,074.07 km) |
| Martinsburg to Knezha | 4,927.09 mi (7,929.39 km) |
| Martinsburg to Kostinbrod | 4,920.63 mi (7,918.99 km) |
| Martinsburg to Kozloduy | 4,901.33 mi (7,887.94 km) |
| Martinsburg to Kyustendil | 4,920.97 mi (7,919.54 km) |
| Martinsburg to Levski | 4,974.52 mi (8,005.71 km) |
| Martinsburg to Lom | 4,879.77 mi (7,853.24 km) |
| Martinsburg to Lovech | 4,967.74 mi (7,994.80 km) |
| Martinsburg to Lukovit | 4,942.96 mi (7,954.93 km) |
| Martinsburg to Lyaskovets | 5,009.01 mi (8,061.22 km) |
| Martinsburg to Mezdra | 4,926.31 mi (7,928.13 km) |
| Martinsburg to Momchilgrad | 5,063.98 mi (8,149.69 km) |
