| Nitra to Oberkirch | 458.63 mi (738.09 km) |
| Nitra to Obernburg am Main | 418.21 mi (673.05 km) |
| Nitra to Obernkirchen | 480.71 mi (773.63 km) |
| Nitra to Oberschleissheim | 299.73 mi (482.36 km) |
| Nitra to Oberstdorf | 367.04 mi (590.69 km) |
| Nitra to Obertraubling | 274.01 mi (440.98 km) |
| Nitra to Obertshausen | 434.86 mi (699.84 km) |
| Nitra to Oberursel | 448.05 mi (721.07 km) |
| Nitra to Ochsenfurt | 375.13 mi (603.72 km) |
| Nitra to Ochsenhausen | 375.04 mi (603.57 km) |
| Nitra to Ochtrup | 550.78 mi (886.39 km) |
| Nitra to Odenthal | 524.82 mi (844.62 km) |
| Nitra to Oelde | 502.92 mi (809.38 km) |
| Nitra to Oelsnitz | 303.53 mi (488.49 km) |
| Nitra to Oer-Erkenschwick | 533.09 mi (857.93 km) |
