| Ourem to Oberkirch | 1,025.60 mi (1,650.55 km) |
| Ourem to Obernburg am Main | 1,113.55 mi (1,792.09 km) |
| Ourem to Obernkirchen | 1,210.84 mi (1,948.67 km) |
| Ourem to Oberschleissheim | 1,159.29 mi (1,865.70 km) |
| Ourem to Oberstdorf | 1,081.58 mi (1,740.64 km) |
| Ourem to Obertraubling | 1,204.42 mi (1,938.33 km) |
| Ourem to Obertshausen | 1,110.63 mi (1,787.39 km) |
| Ourem to Oberursel | 1,106.55 mi (1,780.81 km) |
| Ourem to Ochsenfurt | 1,142.03 mi (1,837.92 km) |
| Ourem to Ochsenhausen | 1,086.30 mi (1,748.22 km) |
| Ourem to Ochtrup | 1,146.51 mi (1,845.13 km) |
| Ourem to Odenthal | 1,090.45 mi (1,754.91 km) |
| Ourem to Oelde | 1,160.08 mi (1,866.97 km) |
| Ourem to Oelsnitz | 1,249.23 mi (2,010.43 km) |
| Ourem to Oer-Erkenschwick | 1,122.29 mi (1,806.15 km) |
