| Olkusz to Oberkirch | 529.54 mi (852.22 km) |
| Olkusz to Obernburg am Main | 462.98 mi (745.09 km) |
| Olkusz to Obernkirchen | 471.46 mi (758.74 km) |
| Olkusz to Oberschleissheim | 386.72 mi (622.37 km) |
| Olkusz to Oberstdorf | 466.08 mi (750.09 km) |
| Olkusz to Obertraubling | 343.22 mi (552.35 km) |
| Olkusz to Obertshausen | 474.71 mi (763.98 km) |
| Olkusz to Oberursel | 485.13 mi (780.75 km) |
| Olkusz to Ochsenfurt | 424.10 mi (682.52 km) |
| Olkusz to Ochsenhausen | 460.01 mi (740.32 km) |
| Olkusz to Ochtrup | 550.76 mi (886.36 km) |
| Olkusz to Odenthal | 547.07 mi (880.43 km) |
| Olkusz to Oelde | 506.63 mi (815.34 km) |
| Olkusz to Oelsnitz | 326.18 mi (524.94 km) |
| Olkusz to Oer-Erkenschwick | 543.39 mi (874.50 km) |
