| Smederevo to Oberkirch | 664.80 mi (1,069.90 km) |
| Smederevo to Obernburg am Main | 657.29 mi (1,057.80 km) |
| Smederevo to Obernkirchen | 752.41 mi (1,210.88 km) |
| Smederevo to Oberschleissheim | 509.40 mi (819.79 km) |
| Smederevo to Oberstdorf | 544.36 mi (876.07 km) |
| Smederevo to Obertraubling | 509.40 mi (819.80 km) |
| Smederevo to Obertshausen | 676.82 mi (1,089.23 km) |
| Smederevo to Oberursel | 691.32 mi (1,112.57 km) |
| Smederevo to Ochsenfurt | 614.82 mi (989.46 km) |
| Smederevo to Ochsenhausen | 573.38 mi (922.77 km) |
| Smederevo to Ochtrup | 815.10 mi (1,311.78 km) |
| Smederevo to Odenthal | 775.13 mi (1,247.44 km) |
| Smederevo to Oelde | 766.91 mi (1,234.23 km) |
| Smederevo to Oelsnitz | 569.42 mi (916.39 km) |
| Smederevo to Oer-Erkenschwick | 791.62 mi (1,273.99 km) |
