| University to Oberkirch | 4,813.78 mi (7,747.03 km) |
| University to Obernburg am Main | 4,827.93 mi (7,769.80 km) |
| University to Obernkirchen | 4,770.65 mi (7,677.62 km) |
| University to Oberschleissheim | 4,969.99 mi (7,998.42 km) |
| University to Oberstdorf | 4,936.25 mi (7,944.12 km) |
| University to Obertraubling | 4,976.59 mi (8,009.05 km) |
| University to Obertshausen | 4,809.72 mi (7,740.49 km) |
| University to Oberursel | 4,795.85 mi (7,718.17 km) |
| University to Ochsenfurt | 4,871.23 mi (7,839.48 km) |
| University to Ochsenhausen | 4,905.22 mi (7,894.18 km) |
| University to Ochtrup | 4,694.65 mi (7,555.31 km) |
| University to Odenthal | 4,716.72 mi (7,590.83 km) |
| University to Oelde | 4,741.46 mi (7,630.64 km) |
| University to Oelsnitz | 4,938.75 mi (7,948.14 km) |
| University to Oer-Erkenschwick | 4,709.11 mi (7,578.57 km) |
