| Pottstown to Karlovo | 4,862.41 mi (7,825.29 km) |
| Pottstown to Karnobat | 4,950.31 mi (7,966.76 km) |
| Pottstown to Kavarna | 4,969.16 mi (7,997.10 km) |
| Pottstown to Kazanlak | 4,887.50 mi (7,865.67 km) |
| Pottstown to Knezha | 4,797.68 mi (7,721.12 km) |
| Pottstown to Kostinbrod | 4,790.56 mi (7,709.66 km) |
| Pottstown to Kozloduy | 4,771.98 mi (7,679.76 km) |
| Pottstown to Kyustendil | 4,790.45 mi (7,709.48 km) |
| Pottstown to Levski | 4,845.37 mi (7,797.86 km) |
| Pottstown to Lom | 4,750.29 mi (7,644.85 km) |
| Pottstown to Lovech | 4,838.32 mi (7,786.52 km) |
| Pottstown to Lukovit | 4,813.41 mi (7,746.43 km) |
| Pottstown to Lyaskovets | 4,879.89 mi (7,853.43 km) |
| Pottstown to Mezdra | 4,796.57 mi (7,719.34 km) |
| Pottstown to Momchilgrad | 4,933.89 mi (7,940.32 km) |
