| Hennef to Montana | 903.51 mi (1,454.07 km) |
| Hennef to Nova Zagora | 1,052.68 mi (1,694.13 km) |
| Hennef to Novi Iskar | 935.83 mi (1,506.07 km) |
| Hennef to Novi Pazar | 1,064.01 mi (1,712.35 km) |
| Hennef to Omurtag | 1,042.60 mi (1,677.91 km) |
| Hennef to Panagyurishte | 981.27 mi (1,579.20 km) |
| Hennef to Parvomay | 1,039.15 mi (1,672.35 km) |
| Hennef to Pavlikeni | 992.84 mi (1,597.83 km) |
| Hennef to Pazardzhik | 1,000.80 mi (1,610.63 km) |
| Hennef to Pernik | 933.19 mi (1,501.83 km) |
| Hennef to Peshtera | 1,007.31 mi (1,621.11 km) |
| Hennef to Petrich | 997.75 mi (1,605.72 km) |
| Hennef to Pleven | 958.05 mi (1,541.84 km) |
| Hennef to Plovdiv | 1,018.97 mi (1,639.87 km) |
| Hennef to Pomorie | 1,113.20 mi (1,791.52 km) |
