| Cerveteri to Oberkirch | 491.68 mi (791.28 km) |
| Cerveteri to Obernburg am Main | 559.93 mi (901.11 km) |
| Cerveteri to Obernkirchen | 722.89 mi (1,163.38 km) |
| Cerveteri to Oberschleissheim | 432.61 mi (696.22 km) |
| Cerveteri to Oberstdorf | 384.29 mi (618.45 km) |
| Cerveteri to Obertraubling | 481.30 mi (774.58 km) |
| Cerveteri to Obertshausen | 578.81 mi (931.51 km) |
| Cerveteri to Oberursel | 591.21 mi (951.46 km) |
| Cerveteri to Ochsenfurt | 537.50 mi (865.02 km) |
| Cerveteri to Ochsenhausen | 432.46 mi (695.97 km) |
| Cerveteri to Ochtrup | 741.54 mi (1,193.40 km) |
| Cerveteri to Odenthal | 667.21 mi (1,073.77 km) |
| Cerveteri to Oelde | 704.25 mi (1,133.38 km) |
| Cerveteri to Oelsnitz | 581.55 mi (935.91 km) |
| Cerveteri to Oer-Erkenschwick | 704.16 mi (1,133.23 km) |
