| San Giuliano Terme to Oberkirch | 348.37 mi (560.66 km) |
| San Giuliano Terme to Obernburg am Main | 424.37 mi (682.96 km) |
| San Giuliano Terme to Obernkirchen | 590.71 mi (950.66 km) |
| San Giuliano Terme to Oberschleissheim | 314.71 mi (506.48 km) |
| San Giuliano Terme to Oberstdorf | 252.12 mi (405.75 km) |
| San Giuliano Terme to Obertraubling | 368.78 mi (593.49 km) |
| San Giuliano Terme to Obertshausen | 442.11 mi (711.51 km) |
| San Giuliano Terme to Oberursel | 453.57 mi (729.95 km) |
| San Giuliano Terme to Ochsenfurt | 407.17 mi (655.28 km) |
| San Giuliano Terme to Ochsenhausen | 298.71 mi (480.73 km) |
| San Giuliano Terme to Ochtrup | 602.26 mi (969.25 km) |
| San Giuliano Terme to Odenthal | 525.73 mi (846.09 km) |
| San Giuliano Terme to Oelde | 567.61 mi (913.48 km) |
| San Giuliano Terme to Oelsnitz | 466.83 mi (751.30 km) |
| San Giuliano Terme to Oer-Erkenschwick | 564.14 mi (907.90 km) |
