| Skien to Oberkirch | 739.94 mi (1,190.81 km) |
| Skien to Obernburg am Main | 647.48 mi (1,042.02 km) |
| Skien to Obernkirchen | 479.92 mi (772.36 km) |
| Skien to Oberschleissheim | 761.50 mi (1,225.52 km) |
| Skien to Oberstdorf | 815.73 mi (1,312.79 km) |
| Skien to Obertraubling | 715.42 mi (1,151.36 km) |
| Skien to Obertshausen | 632.25 mi (1,017.52 km) |
| Skien to Oberursel | 623.37 mi (1,003.22 km) |
| Skien to Ochsenfurt | 660.72 mi (1,063.32 km) |
| Skien to Ochsenhausen | 769.58 mi (1,238.52 km) |
| Skien to Ochtrup | 492.41 mi (792.46 km) |
| Skien to Odenthal | 572.87 mi (921.94 km) |
| Skien to Oelde | 512.47 mi (824.73 km) |
| Skien to Oelsnitz | 616.16 mi (991.61 km) |
| Skien to Oer-Erkenschwick | 530.41 mi (853.61 km) |
