| Middle River to Montana | 4,838.71 mi (7,787.16 km) |
| Middle River to Nova Zagora | 4,989.81 mi (8,030.32 km) |
| Middle River to Novi Iskar | 4,868.57 mi (7,835.21 km) |
| Middle River to Novi Pazar | 5,000.93 mi (8,048.22 km) |
| Middle River to Omurtag | 4,980.34 mi (8,015.09 km) |
| Middle River to Panagyurishte | 4,914.97 mi (7,909.89 km) |
| Middle River to Parvomay | 4,973.80 mi (8,004.56 km) |
| Middle River to Pavlikeni | 4,930.45 mi (7,934.79 km) |
| Middle River to Pazardzhik | 4,933.49 mi (7,939.68 km) |
| Middle River to Pernik | 4,863.68 mi (7,827.33 km) |
| Middle River to Peshtera | 4,939.01 mi (7,948.57 km) |
| Middle River to Petrich | 4,919.97 mi (7,917.92 km) |
| Middle River to Pleven | 4,895.38 mi (7,878.35 km) |
| Middle River to Plovdiv | 4,952.64 mi (7,970.50 km) |
| Middle River to Pomorie | 5,050.86 mi (8,128.58 km) |
