| Tarquinia to Oberkirch | 469.19 mi (755.10 km) |
| Tarquinia to Obernburg am Main | 539.16 mi (867.70 km) |
| Tarquinia to Obernkirchen | 702.97 mi (1,131.31 km) |
| Tarquinia to Oberschleissheim | 414.72 mi (667.42 km) |
| Tarquinia to Oberstdorf | 363.81 mi (585.49 km) |
| Tarquinia to Obertraubling | 464.49 mi (747.53 km) |
| Tarquinia to Obertshausen | 557.84 mi (897.75 km) |
| Tarquinia to Oberursel | 570.06 mi (917.42 km) |
| Tarquinia to Ochsenfurt | 517.71 mi (833.17 km) |
| Tarquinia to Ochsenhausen | 411.83 mi (662.77 km) |
| Tarquinia to Ochtrup | 720.14 mi (1,158.95 km) |
| Tarquinia to Odenthal | 645.26 mi (1,038.45 km) |
| Tarquinia to Oelde | 683.40 mi (1,099.82 km) |
| Tarquinia to Oelsnitz | 564.66 mi (908.73 km) |
| Tarquinia to Oer-Erkenschwick | 682.56 mi (1,098.48 km) |
