| Groves to Oberkirch | 5,198.62 mi (8,366.36 km) |
| Groves to Obernburg am Main | 5,196.67 mi (8,363.23 km) |
| Groves to Obernkirchen | 5,114.76 mi (8,231.42 km) |
| Groves to Oberschleissheim | 5,346.83 mi (8,604.89 km) |
| Groves to Oberstdorf | 5,325.28 mi (8,570.22 km) |
| Groves to Obertraubling | 5,344.57 mi (8,601.26 km) |
| Groves to Obertshausen | 5,177.09 mi (8,331.72 km) |
| Groves to Oberursel | 5,162.59 mi (8,308.38 km) |
| Groves to Ochsenfurt | 5,239.08 mi (8,431.49 km) |
| Groves to Ochsenhausen | 5,288.91 mi (8,511.68 km) |
| Groves to Ochtrup | 5,044.66 mi (8,118.60 km) |
| Groves to Odenthal | 5,079.11 mi (8,174.03 km) |
| Groves to Oelde | 5,092.75 mi (8,195.98 km) |
| Groves to Oelsnitz | 5,292.50 mi (8,517.46 km) |
| Groves to Oer-Erkenschwick | 5,064.83 mi (8,151.06 km) |
