| Grimmen to Obernburg am Main | 338.40 mi (544.60 km) |
| Grimmen to Obernkirchen | 206.37 mi (332.13 km) |
| Grimmen to Oberschleissheim | 409.87 mi (659.62 km) |
| Grimmen to Oberstdorf | 478.33 mi (769.80 km) |
| Grimmen to Obertraubling | 357.40 mi (575.19 km) |
| Grimmen to Obertshausen | 331.47 mi (533.45 km) |
| Grimmen to Oberursel | 329.52 mi (530.30 km) |
| Grimmen to Ochsenfurt | 333.18 mi (536.20 km) |
| Grimmen to Ochsenhausen | 438.13 mi (705.10 km) |
| Grimmen to Ochtrup | 275.69 mi (443.69 km) |
| Grimmen to Odenthal | 327.05 mi (526.34 km) |
| Grimmen to Oelde | 257.13 mi (413.81 km) |
| Grimmen to Oelsnitz | 257.84 mi (414.96 km) |
| Grimmen to Oer-Erkenschwick | 295.46 mi (475.49 km) |
| Grimmen to Oerlinghausen | 234.36 mi (377.17 km) |
