| Beykoz to Oberkirch | 1,144.22 mi (1,841.44 km) |
| Beykoz to Obernburg am Main | 1,132.94 mi (1,823.29 km) |
| Beykoz to Obernkirchen | 1,212.55 mi (1,951.41 km) |
| Beykoz to Oberschleissheim | 987.99 mi (1,590.01 km) |
| Beykoz to Oberstdorf | 1,023.30 mi (1,646.84 km) |
| Beykoz to Obertraubling | 984.19 mi (1,583.90 km) |
| Beykoz to Obertshausen | 1,151.91 mi (1,853.81 km) |
| Beykoz to Oberursel | 1,166.16 mi (1,876.75 km) |
| Beykoz to Ochsenfurt | 1,089.95 mi (1,754.10 km) |
| Beykoz to Ochsenhausen | 1,052.80 mi (1,694.32 km) |
| Beykoz to Ochtrup | 1,281.33 mi (2,062.10 km) |
| Beykoz to Odenthal | 1,248.25 mi (2,008.87 km) |
| Beykoz to Oelde | 1,233.21 mi (1,984.66 km) |
| Beykoz to Oelsnitz | 1,033.47 mi (1,663.21 km) |
| Beykoz to Oer-Erkenschwick | 1,261.21 mi (2,029.73 km) |
