| San Martino Buon Albergo to Oberkirch | 258.01 mi (415.23 km) |
| San Martino Buon Albergo to Obernburg am Main | 318.91 mi (513.23 km) |
| San Martino Buon Albergo to Obernkirchen | 481.73 mi (775.26 km) |
| San Martino Buon Albergo to Oberschleissheim | 197.00 mi (317.04 km) |
| San Martino Buon Albergo to Oberstdorf | 143.14 mi (230.37 km) |
| San Martino Buon Albergo to Obertraubling | 250.28 mi (402.78 km) |
| San Martino Buon Albergo to Obertshausen | 338.06 mi (544.06 km) |
| San Martino Buon Albergo to Oberursel | 350.78 mi (564.52 km) |
| San Martino Buon Albergo to Ochsenfurt | 296.43 mi (477.06 km) |
| San Martino Buon Albergo to Ochsenhausen | 191.41 mi (308.04 km) |
| San Martino Buon Albergo to Ochtrup | 501.48 mi (807.05 km) |
| San Martino Buon Albergo to Odenthal | 429.05 mi (690.48 km) |
| San Martino Buon Albergo to Oelde | 463.26 mi (745.55 km) |
| San Martino Buon Albergo to Oelsnitz | 348.97 mi (561.61 km) |
| San Martino Buon Albergo to Oer-Erkenschwick | 464.64 mi (747.76 km) |
