| Gambettola to Oberkirch | 366.26 mi (589.43 km) |
| Gambettola to Obernburg am Main | 423.00 mi (680.75 km) |
| Gambettola to Obernkirchen | 582.09 mi (936.78 km) |
| Gambettola to Oberschleissheim | 287.92 mi (463.37 km) |
| Gambettola to Oberstdorf | 248.11 mi (399.29 km) |
| Gambettola to Obertraubling | 335.13 mi (539.35 km) |
| Gambettola to Obertshausen | 442.72 mi (712.49 km) |
| Gambettola to Oberursel | 455.92 mi (733.73 km) |
| Gambettola to Ochsenfurt | 396.96 mi (638.85 km) |
| Gambettola to Ochsenhausen | 296.19 mi (476.68 km) |
| Gambettola to Ochtrup | 606.69 mi (976.38 km) |
| Gambettola to Odenthal | 535.87 mi (862.39 km) |
| Gambettola to Oelde | 566.95 mi (912.42 km) |
| Gambettola to Oelsnitz | 435.36 mi (700.64 km) |
| Gambettola to Oer-Erkenschwick | 570.47 mi (918.09 km) |
