| Niederkassel to Montana | 914.24 mi (1,471.33 km) |
| Niederkassel to Nova Zagora | 1,063.53 mi (1,711.59 km) |
| Niederkassel to Novi Iskar | 946.46 mi (1,523.18 km) |
| Niederkassel to Novi Pazar | 1,075.03 mi (1,730.09 km) |
| Niederkassel to Omurtag | 1,053.55 mi (1,695.53 km) |
| Niederkassel to Panagyurishte | 991.94 mi (1,596.37 km) |
| Niederkassel to Parvomay | 1,049.86 mi (1,689.59 km) |
| Niederkassel to Pavlikeni | 1,003.74 mi (1,615.36 km) |
| Niederkassel to Pazardzhik | 1,011.43 mi (1,627.74 km) |
| Niederkassel to Pernik | 943.74 mi (1,518.80 km) |
| Niederkassel to Peshtera | 1,017.91 mi (1,638.17 km) |
| Niederkassel to Petrich | 1,008.08 mi (1,622.34 km) |
| Niederkassel to Pleven | 968.91 mi (1,559.31 km) |
| Niederkassel to Plovdiv | 1,029.64 mi (1,657.05 km) |
| Niederkassel to Pomorie | 1,124.16 mi (1,809.17 km) |
