| Sozopol to Obernburg am Main | 1,022.02 mi (1,644.78 km) |
| Sozopol to Obernkirchen | 1,099.09 mi (1,768.82 km) |
| Sozopol to Oberschleissheim | 878.79 mi (1,414.28 km) |
| Sozopol to Oberstdorf | 917.05 mi (1,475.85 km) |
| Sozopol to Obertraubling | 873.20 mi (1,405.27 km) |
| Sozopol to Obertshausen | 1,040.77 mi (1,674.96 km) |
| Sozopol to Oberursel | 1,054.93 mi (1,697.75 km) |
| Sozopol to Ochsenfurt | 978.90 mi (1,575.38 km) |
| Sozopol to Ochsenhausen | 944.99 mi (1,520.81 km) |
| Sozopol to Ochtrup | 1,168.37 mi (1,880.31 km) |
| Sozopol to Odenthal | 1,136.47 mi (1,828.98 km) |
| Sozopol to Oelde | 1,120.30 mi (1,802.94 km) |
| Sozopol to Oelsnitz | 920.54 mi (1,481.46 km) |
| Sozopol to Oer-Erkenschwick | 1,148.73 mi (1,848.70 km) |
| Sozopol to Oerlinghausen | 1,105.32 mi (1,778.84 km) |
