| Eiras to Oberkirch | 992.85 mi (1,597.83 km) |
| Eiras to Obernburg am Main | 1,079.53 mi (1,737.34 km) |
| Eiras to Obernkirchen | 1,174.17 mi (1,889.64 km) |
| Eiras to Oberschleissheim | 1,128.78 mi (1,816.59 km) |
| Eiras to Oberstdorf | 1,051.88 mi (1,692.84 km) |
| Eiras to Obertraubling | 1,173.07 mi (1,887.87 km) |
| Eiras to Obertshausen | 1,076.17 mi (1,731.92 km) |
| Eiras to Oberursel | 1,071.78 mi (1,724.86 km) |
| Eiras to Ochsenfurt | 1,108.73 mi (1,784.33 km) |
| Eiras to Ochsenhausen | 1,055.30 mi (1,698.34 km) |
| Eiras to Ochtrup | 1,109.01 mi (1,784.78 km) |
| Eiras to Odenthal | 1,053.99 mi (1,696.23 km) |
| Eiras to Oelde | 1,123.36 mi (1,807.87 km) |
| Eiras to Oelsnitz | 1,215.89 mi (1,956.79 km) |
| Eiras to Oer-Erkenschwick | 1,085.31 mi (1,746.64 km) |
