| Aalen to Obernburg am Main | 81.86 mi (131.73 km) |
| Aalen to Obernkirchen | 241.09 mi (387.99 km) |
| Aalen to Oberschleissheim | 78.27 mi (125.96 km) |
| Aalen to Oberstdorf | 98.71 mi (158.85 km) |
| Aalen to Obertraubling | 94.32 mi (151.80 km) |
| Aalen to Obertshausen | 102.46 mi (164.90 km) |
| Aalen to Oberursel | 116.73 mi (187.86 km) |
| Aalen to Ochsenfurt | 56.45 mi (90.85 km) |
| Aalen to Ochsenhausen | 53.05 mi (85.37 km) |
| Aalen to Ochtrup | 265.71 mi (427.62 km) |
| Aalen to Odenthal | 201.73 mi (324.66 km) |
| Aalen to Oelde | 224.39 mi (361.12 km) |
| Aalen to Oelsnitz | 143.25 mi (230.55 km) |
| Aalen to Oer-Erkenschwick | 231.30 mi (372.24 km) |
| Aalen to Oerlinghausen | 225.50 mi (362.91 km) |
