| Rudolstadt to Oberkirch | 209.36 mi (336.93 km) |
| Rudolstadt to Obernburg am Main | 113.96 mi (183.40 km) |
| Rudolstadt to Obernkirchen | 143.16 mi (230.39 km) |
| Rudolstadt to Oberschleissheim | 170.78 mi (274.85 km) |
| Rudolstadt to Oberstdorf | 233.37 mi (375.58 km) |
| Rudolstadt to Obertraubling | 126.64 mi (203.80 km) |
| Rudolstadt to Obertshausen | 118.69 mi (191.01 km) |
| Rudolstadt to Oberursel | 126.08 mi (202.90 km) |
| Rudolstadt to Ochsenfurt | 92.44 mi (148.77 km) |
| Rudolstadt to Ochsenhausen | 192.96 mi (310.54 km) |
| Rudolstadt to Ochtrup | 205.62 mi (330.92 km) |
| Rudolstadt to Odenthal | 184.86 mi (297.50 km) |
| Rudolstadt to Oelde | 157.50 mi (253.47 km) |
| Rudolstadt to Oelsnitz | 42.27 mi (68.02 km) |
| Rudolstadt to Oer-Erkenschwick | 187.76 mi (302.17 km) |
