| Reisterstown to Oberkirch | 4,045.85 mi (6,511.17 km) |
| Reisterstown to Obernburg am Main | 4,049.93 mi (6,517.74 km) |
| Reisterstown to Obernkirchen | 3,978.51 mi (6,402.80 km) |
| Reisterstown to Oberschleissheim | 4,197.39 mi (6,755.05 km) |
| Reisterstown to Oberstdorf | 4,171.42 mi (6,713.25 km) |
| Reisterstown to Obertraubling | 4,198.59 mi (6,756.97 km) |
| Reisterstown to Obertshausen | 4,030.84 mi (6,487.01 km) |
| Reisterstown to Oberursel | 4,016.55 mi (6,464.02 km) |
| Reisterstown to Ochsenfurt | 4,092.83 mi (6,586.78 km) |
| Reisterstown to Ochsenhausen | 4,136.80 mi (6,657.53 km) |
| Reisterstown to Ochtrup | 3,905.44 mi (6,285.20 km) |
| Reisterstown to Odenthal | 3,934.60 mi (6,332.13 km) |
| Reisterstown to Oelde | 3,953.11 mi (6,361.91 km) |
| Reisterstown to Oelsnitz | 4,152.41 mi (6,682.65 km) |
| Reisterstown to Oer-Erkenschwick | 3,923.13 mi (6,313.67 km) |
