| Grevesmuhlen to Obernburg am Main | 291.30 mi (468.81 km) |
| Grevesmuhlen to Obernkirchen | 139.49 mi (224.49 km) |
| Grevesmuhlen to Oberschleissheim | 388.46 mi (625.17 km) |
| Grevesmuhlen to Oberstdorf | 447.82 mi (720.69 km) |
| Grevesmuhlen to Obertraubling | 341.34 mi (549.34 km) |
| Grevesmuhlen to Obertshausen | 280.68 mi (451.71 km) |
| Grevesmuhlen to Oberursel | 275.97 mi (444.13 km) |
| Grevesmuhlen to Ochsenfurt | 295.11 mi (474.93 km) |
| Grevesmuhlen to Ochsenhausen | 403.84 mi (649.92 km) |
| Grevesmuhlen to Ochtrup | 201.11 mi (323.66 km) |
| Grevesmuhlen to Odenthal | 259.55 mi (417.71 km) |
| Grevesmuhlen to Oelde | 188.60 mi (303.52 km) |
| Grevesmuhlen to Oelsnitz | 242.11 mi (389.63 km) |
| Grevesmuhlen to Oer-Erkenschwick | 224.52 mi (361.34 km) |
| Grevesmuhlen to Oerlinghausen | 167.55 mi (269.65 km) |
