| Ermoupoli to Oberkirch | 1,140.85 mi (1,836.01 km) |
| Ermoupoli to Obernburg am Main | 1,160.23 mi (1,867.21 km) |
| Ermoupoli to Obernkirchen | 1,278.30 mi (2,057.23 km) |
| Ermoupoli to Oberschleissheim | 1,005.06 mi (1,617.49 km) |
| Ermoupoli to Oberstdorf | 1,013.01 mi (1,630.29 km) |
| Ermoupoli to Obertraubling | 1,020.50 mi (1,642.33 km) |
| Ermoupoli to Obertshausen | 1,180.87 mi (1,900.43 km) |
| Ermoupoli to Oberursel | 1,195.63 mi (1,924.18 km) |
| Ermoupoli to Ochsenfurt | 1,120.88 mi (1,803.89 km) |
| Ermoupoli to Ochsenhausen | 1,053.39 mi (1,695.27 km) |
| Ermoupoli to Ochtrup | 1,333.00 mi (2,145.26 km) |
| Ermoupoli to Odenthal | 1,281.56 mi (2,062.47 km) |
| Ermoupoli to Oelde | 1,285.70 mi (2,069.14 km) |
| Ermoupoli to Oelsnitz | 1,095.43 mi (1,762.93 km) |
| Ermoupoli to Oer-Erkenschwick | 1,304.84 mi (2,099.93 km) |
