| Perth to Oberkirch | 726.22 mi (1,168.74 km) |
| Perth to Obernburg am Main | 688.84 mi (1,108.58 km) |
| Perth to Obernkirchen | 579.37 mi (932.41 km) |
| Perth to Oberschleissheim | 844.11 mi (1,358.47 km) |
| Perth to Oberstdorf | 849.75 mi (1,367.55 km) |
| Perth to Obertraubling | 827.77 mi (1,332.17 km) |
| Perth to Obertshausen | 668.07 mi (1,075.15 km) |
| Perth to Oberursel | 653.38 mi (1,051.51 km) |
| Perth to Ochsenfurt | 727.19 mi (1,170.29 km) |
| Perth to Ochsenhausen | 804.41 mi (1,294.58 km) |
| Perth to Ochtrup | 516.12 mi (830.61 km) |
| Perth to Odenthal | 567.58 mi (913.43 km) |
| Perth to Oelde | 564.07 mi (907.79 km) |
| Perth to Oelsnitz | 761.23 mi (1,225.09 km) |
| Perth to Oer-Erkenschwick | 543.04 mi (873.94 km) |
