| Oraiokastro to Oberkirch | 904.25 mi (1,455.25 km) |
| Oraiokastro to Obernburg am Main | 916.18 mi (1,474.45 km) |
| Oraiokastro to Obernkirchen | 1,028.73 mi (1,655.58 km) |
| Oraiokastro to Oberschleissheim | 761.85 mi (1,226.09 km) |
| Oraiokastro to Oberstdorf | 777.10 mi (1,250.62 km) |
| Oraiokastro to Obertraubling | 773.64 mi (1,245.06 km) |
| Oraiokastro to Obertshausen | 936.63 mi (1,507.36 km) |
| Oraiokastro to Oberursel | 951.39 mi (1,531.11 km) |
| Oraiokastro to Ochsenfurt | 875.81 mi (1,409.47 km) |
| Oraiokastro to Ochsenhausen | 814.80 mi (1,311.30 km) |
| Oraiokastro to Ochtrup | 1,085.55 mi (1,747.03 km) |
| Oraiokastro to Odenthal | 1,037.09 mi (1,669.03 km) |
| Oraiokastro to Oelde | 1,037.91 mi (1,670.36 km) |
| Oraiokastro to Oelsnitz | 845.51 mi (1,360.71 km) |
| Oraiokastro to Oer-Erkenschwick | 1,058.57 mi (1,703.61 km) |
