| Tangermunde to Oberkirch | 325.14 mi (523.26 km) |
| Tangermunde to Obernburg am Main | 223.15 mi (359.13 km) |
| Tangermunde to Obernkirchen | 121.66 mi (195.80 km) |
| Tangermunde to Oberschleissheim | 296.99 mi (477.96 km) |
| Tangermunde to Oberstdorf | 362.36 mi (583.16 km) |
| Tangermunde to Obertraubling | 247.16 mi (397.77 km) |
| Tangermunde to Obertshausen | 218.06 mi (350.93 km) |
| Tangermunde to Oberursel | 217.87 mi (350.63 km) |
| Tangermunde to Ochsenfurt | 216.10 mi (347.78 km) |
| Tangermunde to Ochsenhausen | 321.34 mi (517.14 km) |
| Tangermunde to Ochtrup | 202.86 mi (326.47 km) |
| Tangermunde to Odenthal | 232.01 mi (373.38 km) |
| Tangermunde to Oelde | 168.97 mi (271.93 km) |
| Tangermunde to Oelsnitz | 147.01 mi (236.59 km) |
| Tangermunde to Oer-Erkenschwick | 209.65 mi (337.39 km) |
