| Entroncamento to Oberkirch | 1,030.36 mi (1,658.20 km) |
| Entroncamento to Obernburg am Main | 1,118.93 mi (1,800.75 km) |
| Entroncamento to Obernkirchen | 1,217.69 mi (1,959.69 km) |
| Entroncamento to Oberschleissheim | 1,162.95 mi (1,871.58 km) |
| Entroncamento to Oberstdorf | 1,084.88 mi (1,745.95 km) |
| Entroncamento to Obertraubling | 1,208.46 mi (1,944.83 km) |
| Entroncamento to Obertshausen | 1,116.25 mi (1,796.43 km) |
| Entroncamento to Oberursel | 1,112.33 mi (1,790.12 km) |
| Entroncamento to Ochsenfurt | 1,147.03 mi (1,845.97 km) |
| Entroncamento to Ochsenhausen | 1,090.19 mi (1,754.49 km) |
| Entroncamento to Ochtrup | 1,153.87 mi (1,856.98 km) |
| Entroncamento to Odenthal | 1,097.19 mi (1,765.76 km) |
| Entroncamento to Oelde | 1,166.96 mi (1,878.04 km) |
| Entroncamento to Oelsnitz | 1,254.23 mi (2,018.49 km) |
| Entroncamento to Oer-Erkenschwick | 1,129.33 mi (1,817.49 km) |
