| Birkenhead to Montana | 1,375.72 mi (2,214.00 km) |
| Birkenhead to Nova Zagora | 1,525.00 mi (2,454.25 km) |
| Birkenhead to Novi Iskar | 1,407.60 mi (2,265.31 km) |
| Birkenhead to Novi Pazar | 1,534.93 mi (2,470.24 km) |
| Birkenhead to Omurtag | 1,514.42 mi (2,437.22 km) |
| Birkenhead to Panagyurishte | 1,453.25 mi (2,338.79 km) |
| Birkenhead to Parvomay | 1,511.32 mi (2,432.23 km) |
| Birkenhead to Pavlikeni | 1,465.03 mi (2,357.74 km) |
| Birkenhead to Pazardzhik | 1,472.60 mi (2,369.93 km) |
| Birkenhead to Pernik | 1,404.44 mi (2,260.24 km) |
| Birkenhead to Peshtera | 1,478.92 mi (2,380.09 km) |
| Birkenhead to Petrich | 1,466.97 mi (2,360.86 km) |
| Birkenhead to Pleven | 1,430.35 mi (2,301.92 km) |
| Birkenhead to Plovdiv | 1,490.97 mi (2,399.48 km) |
| Birkenhead to Pomorie | 1,584.85 mi (2,550.58 km) |
