| Ravenna to Oberkirch | 345.32 mi (555.74 km) |
| Ravenna to Obernburg am Main | 401.33 mi (645.88 km) |
| Ravenna to Obernkirchen | 560.45 mi (901.96 km) |
| Ravenna to Oberschleissheim | 266.62 mi (429.08 km) |
| Ravenna to Oberstdorf | 226.53 mi (364.56 km) |
| Ravenna to Obertraubling | 314.36 mi (505.91 km) |
| Ravenna to Obertshausen | 421.07 mi (677.64 km) |
| Ravenna to Oberursel | 434.29 mi (698.92 km) |
| Ravenna to Ochsenfurt | 375.30 mi (603.99 km) |
| Ravenna to Ochsenhausen | 274.58 mi (441.89 km) |
| Ravenna to Ochtrup | 585.05 mi (941.55 km) |
| Ravenna to Odenthal | 514.38 mi (827.81 km) |
| Ravenna to Oelde | 545.27 mi (877.52 km) |
| Ravenna to Oelsnitz | 414.60 mi (667.24 km) |
| Ravenna to Oer-Erkenschwick | 548.87 mi (883.33 km) |
