| Potomac Park to Karlovo | 6,582.40 mi (10,593.35 km) |
| Potomac Park to Karnobat | 6,635.19 mi (10,678.31 km) |
| Potomac Park to Kavarna | 6,616.61 mi (10,648.41 km) |
| Potomac Park to Kazanlak | 6,598.51 mi (10,619.28 km) |
| Potomac Park to Knezha | 6,512.92 mi (10,481.54 km) |
| Potomac Park to Kostinbrod | 6,532.21 mi (10,512.58 km) |
| Potomac Park to Kozloduy | 6,487.26 mi (10,440.24 km) |
| Potomac Park to Kyustendil | 6,550.32 mi (10,541.73 km) |
| Potomac Park to Levski | 6,546.56 mi (10,535.68 km) |
| Potomac Park to Lom | 6,472.41 mi (10,416.35 km) |
| Potomac Park to Lovech | 6,550.51 mi (10,542.02 km) |
| Potomac Park to Lukovit | 6,533.04 mi (10,513.91 km) |
| Potomac Park to Lyaskovets | 6,576.76 mi (10,584.27 km) |
| Potomac Park to Mezdra | 6,524.44 mi (10,500.07 km) |
| Potomac Park to Momchilgrad | 6,664.69 mi (10,725.78 km) |
