| Zemun to Oberkirch | 635.84 mi (1,023.28 km) |
| Zemun to Obernburg am Main | 628.82 mi (1,011.98 km) |
| Zemun to Obernkirchen | 725.59 mi (1,167.72 km) |
| Zemun to Oberschleissheim | 480.57 mi (773.41 km) |
| Zemun to Oberstdorf | 515.41 mi (829.48 km) |
| Zemun to Obertraubling | 481.11 mi (774.28 km) |
| Zemun to Obertshausen | 648.41 mi (1,043.51 km) |
| Zemun to Oberursel | 662.93 mi (1,066.89 km) |
| Zemun to Ochsenfurt | 586.43 mi (943.77 km) |
| Zemun to Ochsenhausen | 544.41 mi (876.15 km) |
| Zemun to Ochtrup | 787.59 mi (1,267.51 km) |
| Zemun to Odenthal | 746.90 mi (1,202.02 km) |
| Zemun to Oelde | 739.43 mi (1,190.00 km) |
| Zemun to Oelsnitz | 542.42 mi (872.93 km) |
| Zemun to Oer-Erkenschwick | 763.77 mi (1,229.17 km) |
