| Hallbergmoos to Obernburg am Main | 157.37 mi (253.26 km) |
| Hallbergmoos to Obernkirchen | 295.49 mi (475.55 km) |
| Hallbergmoos to Oberschleissheim | 10.20 mi (16.42 km) |
| Hallbergmoos to Oberstdorf | 93.37 mi (150.27 km) |
| Hallbergmoos to Obertraubling | 47.67 mi (76.71 km) |
| Hallbergmoos to Obertshausen | 177.97 mi (286.42 km) |
| Hallbergmoos to Oberursel | 192.74 mi (310.18 km) |
| Hallbergmoos to Ochsenfurt | 118.74 mi (191.09 km) |
| Hallbergmoos to Ochsenhausen | 84.91 mi (136.66 km) |
| Hallbergmoos to Ochtrup | 334.72 mi (538.68 km) |
| Hallbergmoos to Odenthal | 278.66 mi (448.45 km) |
| Hallbergmoos to Oelde | 289.67 mi (466.18 km) |
| Hallbergmoos to Oelsnitz | 145.16 mi (233.62 km) |
| Hallbergmoos to Oer-Erkenschwick | 303.56 mi (488.53 km) |
| Hallbergmoos to Oerlinghausen | 285.70 mi (459.78 km) |
