| Pianezza to Oberkirch | 238.19 mi (383.33 km) |
| Pianezza to Obernburg am Main | 335.49 mi (539.91 km) |
| Pianezza to Obernkirchen | 499.90 mi (804.51 km) |
| Pianezza to Oberschleissheim | 289.00 mi (465.10 km) |
| Pianezza to Oberstdorf | 205.94 mi (331.42 km) |
| Pianezza to Obertraubling | 344.15 mi (553.85 km) |
| Pianezza to Obertshausen | 347.98 mi (560.02 km) |
| Pianezza to Oberursel | 355.46 mi (572.06 km) |
| Pianezza to Ochsenfurt | 335.38 mi (539.75 km) |
| Pianezza to Ochsenhausen | 234.59 mi (377.53 km) |
| Pianezza to Ochtrup | 490.81 mi (789.89 km) |
| Pianezza to Odenthal | 410.02 mi (659.87 km) |
| Pianezza to Oelde | 465.65 mi (749.39 km) |
| Pianezza to Oelsnitz | 424.96 mi (683.91 km) |
| Pianezza to Oer-Erkenschwick | 451.82 mi (727.13 km) |
