| Hardenberg to Nordwalde | 49.54 mi (79.73 km) |
| Hardenberg to Northeim | 155.32 mi (249.96 km) |
| Hardenberg to Norvenich | 122.08 mi (196.46 km) |
| Hardenberg to Nossen | 304.00 mi (489.23 km) |
| Hardenberg to Nottuln | 54.05 mi (86.99 km) |
| Hardenberg to Numbrecht | 121.43 mi (195.42 km) |
| Hardenberg to Nuremberg | 289.48 mi (465.87 km) |
| Hardenberg to Nurtingen | 296.68 mi (477.47 km) |
| Hardenberg to Nussloch | 241.61 mi (388.83 km) |
| Hardenberg to Ober-Ramstadt | 210.21 mi (338.30 km) |
| Hardenberg to Oberasbach | 287.75 mi (463.09 km) |
| Hardenberg to Oberderdingen | 260.20 mi (418.75 km) |
| Hardenberg to Oberhaching | 383.07 mi (616.49 km) |
| Hardenberg to Oberhausen | 74.71 mi (120.24 km) |
| Hardenberg to Oberhausen-Rheinhausen | 242.47 mi (390.22 km) |
