| Plankstadt to Oberkirch | 63.78 mi (102.64 km) |
| Plankstadt to Obernburg am Main | 39.40 mi (63.41 km) |
| Plankstadt to Obernkirchen | 199.82 mi (321.58 km) |
| Plankstadt to Oberschleissheim | 156.59 mi (252.01 km) |
| Plankstadt to Oberstdorf | 157.34 mi (253.21 km) |
| Plankstadt to Obertraubling | 164.03 mi (263.98 km) |
| Plankstadt to Obertshausen | 47.74 mi (76.83 km) |
| Plankstadt to Oberursel | 55.97 mi (90.08 km) |
| Plankstadt to Ochsenfurt | 68.38 mi (110.05 km) |
| Plankstadt to Ochsenhausen | 110.17 mi (177.30 km) |
| Plankstadt to Ochtrup | 203.74 mi (327.89 km) |
| Plankstadt to Odenthal | 130.79 mi (210.49 km) |
| Plankstadt to Oelde | 169.71 mi (273.12 km) |
| Plankstadt to Oelsnitz | 173.97 mi (279.98 km) |
| Plankstadt to Oer-Erkenschwick | 166.21 mi (267.48 km) |
