| Rockville to Montana | 4,880.09 mi (7,853.75 km) |
| Rockville to Nova Zagora | 5,031.08 mi (8,096.74 km) |
| Rockville to Novi Iskar | 4,910.05 mi (7,901.96 km) |
| Rockville to Novi Pazar | 5,041.92 mi (8,114.19 km) |
| Rockville to Omurtag | 5,021.47 mi (8,081.27 km) |
| Rockville to Panagyurishte | 4,956.42 mi (7,976.59 km) |
| Rockville to Parvomay | 5,015.22 mi (8,071.22 km) |
| Rockville to Pavlikeni | 4,971.66 mi (8,001.11 km) |
| Rockville to Pazardzhik | 4,974.97 mi (8,006.45 km) |
| Rockville to Pernik | 4,905.21 mi (7,894.18 km) |
| Rockville to Peshtera | 4,980.52 mi (8,015.38 km) |
| Rockville to Petrich | 4,961.68 mi (7,985.05 km) |
| Rockville to Pleven | 4,936.63 mi (7,944.73 km) |
| Rockville to Plovdiv | 4,994.09 mi (8,037.21 km) |
| Rockville to Pomorie | 5,091.96 mi (8,194.72 km) |
