| East San Gabriel to Oberkirch | 5,834.65 mi (9,389.97 km) |
| East San Gabriel to Obernburg am Main | 5,799.29 mi (9,333.06 km) |
| East San Gabriel to Obernkirchen | 5,673.31 mi (9,130.30 km) |
| East San Gabriel to Oberschleissheim | 5,954.17 mi (9,582.32 km) |
| East San Gabriel to Oberstdorf | 5,960.05 mi (9,591.77 km) |
| East San Gabriel to Obertraubling | 5,933.46 mi (9,548.99 km) |
| East San Gabriel to Obertshausen | 5,778.49 mi (9,299.58 km) |
| East San Gabriel to Oberursel | 5,763.88 mi (9,276.07 km) |
| East San Gabriel to Ochsenfurt | 5,836.38 mi (9,392.75 km) |
| East San Gabriel to Ochsenhausen | 5,915.32 mi (9,519.78 km) |
| East San Gabriel to Ochtrup | 5,621.37 mi (9,046.72 km) |
| East San Gabriel to Odenthal | 5,678.35 mi (9,138.43 km) |
| East San Gabriel to Oelde | 5,667.96 mi (9,121.71 km) |
| East San Gabriel to Oelsnitz | 5,855.94 mi (9,424.22 km) |
| East San Gabriel to Oer-Erkenschwick | 5,651.56 mi (9,095.31 km) |
