| Gassino Torinese to Oberkirch | 235.66 mi (379.26 km) |
| Gassino Torinese to Obernburg am Main | 331.37 mi (533.28 km) |
| Gassino Torinese to Obernkirchen | 496.77 mi (799.47 km) |
| Gassino Torinese to Oberschleissheim | 279.23 mi (449.38 km) |
| Gassino Torinese to Oberstdorf | 196.49 mi (316.21 km) |
| Gassino Torinese to Obertraubling | 334.75 mi (538.73 km) |
| Gassino Torinese to Obertshausen | 344.50 mi (554.42 km) |
| Gassino Torinese to Oberursel | 352.47 mi (567.24 km) |
| Gassino Torinese to Ochsenfurt | 329.59 mi (530.42 km) |
| Gassino Torinese to Ochsenhausen | 227.06 mi (365.42 km) |
| Gassino Torinese to Ochtrup | 489.93 mi (788.46 km) |
| Gassino Torinese to Odenthal | 409.38 mi (658.83 km) |
| Gassino Torinese to Oelde | 463.59 mi (746.08 km) |
| Gassino Torinese to Oelsnitz | 417.23 mi (671.46 km) |
| Gassino Torinese to Oer-Erkenschwick | 450.92 mi (725.68 km) |
