| San Giovanni in Marignano to Oberkirch | 386.78 mi (622.46 km) |
| San Giovanni in Marignano to Obernburg am Main | 441.08 mi (709.86 km) |
| San Giovanni in Marignano to Obernkirchen | 598.60 mi (963.35 km) |
| San Giovanni in Marignano to Oberschleissheim | 302.86 mi (487.40 km) |
| San Giovanni in Marignano to Oberstdorf | 267.00 mi (429.70 km) |
| San Giovanni in Marignano to Obertraubling | 348.27 mi (560.48 km) |
| San Giovanni in Marignano to Obertshausen | 461.00 mi (741.90 km) |
| San Giovanni in Marignano to Oberursel | 474.38 mi (763.44 km) |
| San Giovanni in Marignano to Ochsenfurt | 413.89 mi (666.09 km) |
| San Giovanni in Marignano to Ochsenhausen | 314.84 mi (506.69 km) |
| San Giovanni in Marignano to Ochtrup | 625.04 mi (1,005.90 km) |
| San Giovanni in Marignano to Odenthal | 555.08 mi (893.31 km) |
| San Giovanni in Marignano to Oelde | 584.68 mi (940.96 km) |
| San Giovanni in Marignano to Oelsnitz | 448.28 mi (721.43 km) |
| San Giovanni in Marignano to Oer-Erkenschwick | 589.14 mi (948.13 km) |
