| Mering to Obernburg am Main | 137.27 mi (220.91 km) |
| Mering to Obernkirchen | 288.64 mi (464.52 km) |
| Mering to Oberschleissheim | 26.80 mi (43.13 km) |
| Mering to Oberstdorf | 67.39 mi (108.45 km) |
| Mering to Obertraubling | 72.66 mi (116.93 km) |
| Mering to Obertshausen | 158.05 mi (254.36 km) |
| Mering to Oberursel | 172.55 mi (277.69 km) |
| Mering to Ochsenfurt | 104.52 mi (168.20 km) |
| Mering to Ochsenhausen | 49.53 mi (79.71 km) |
| Mering to Ochtrup | 319.81 mi (514.68 km) |
| Mering to Odenthal | 257.98 mi (415.18 km) |
| Mering to Oelde | 276.87 mi (445.58 km) |
| Mering to Oelsnitz | 158.07 mi (254.38 km) |
| Mering to Oer-Erkenschwick | 286.41 mi (460.93 km) |
| Mering to Oerlinghausen | 275.73 mi (443.75 km) |
