| Pottstown to Devnya | 4,948.42 mi (7,963.70 km) |
| Pottstown to Dimitrovgrad | 4,919.49 mi (7,917.15 km) |
| Pottstown to Dobrich | 4,943.84 mi (7,956.34 km) |
| Pottstown to Dospat | 4,877.71 mi (7,849.91 km) |
| Pottstown to Dupnitsa | 4,809.13 mi (7,739.55 km) |
| Pottstown to Elhovo | 4,953.58 mi (7,972.02 km) |
| Pottstown to Etropole | 4,821.79 mi (7,759.92 km) |
| Pottstown to Gabrovo | 4,874.31 mi (7,844.44 km) |
| Pottstown to Gorna Oryahovitsa | 4,877.82 mi (7,850.10 km) |
| Pottstown to Gotse Delchev | 4,863.30 mi (7,826.72 km) |
| Pottstown to Harmanli | 4,936.60 mi (7,944.69 km) |
| Pottstown to Haskovo | 4,923.07 mi (7,922.92 km) |
| Pottstown to Ihtiman | 4,830.66 mi (7,774.19 km) |
| Pottstown to Isperih | 4,898.15 mi (7,882.81 km) |
| Pottstown to Kardzhali | 4,926.91 mi (7,929.09 km) |
