| Wealdstone to Oberkirch | 428.79 mi (690.08 km) |
| Wealdstone to Obernburg am Main | 431.59 mi (694.57 km) |
| Wealdstone to Obernkirchen | 405.09 mi (651.94 km) |
| Wealdstone to Oberschleissheim | 576.83 mi (928.32 km) |
| Wealdstone to Oberstdorf | 556.41 mi (895.45 km) |
| Wealdstone to Obertraubling | 580.27 mi (933.86 km) |
| Wealdstone to Obertshausen | 413.51 mi (665.48 km) |
| Wealdstone to Oberursel | 399.81 mi (643.43 km) |
| Wealdstone to Ochsenfurt | 474.89 mi (764.26 km) |
| Wealdstone to Ochsenhausen | 518.28 mi (834.09 km) |
| Wealdstone to Ochtrup | 323.44 mi (520.52 km) |
| Wealdstone to Odenthal | 324.01 mi (521.45 km) |
| Wealdstone to Oelde | 363.41 mi (584.85 km) |
| Wealdstone to Oelsnitz | 548.91 mi (883.38 km) |
| Wealdstone to Oer-Erkenschwick | 325.30 mi (523.53 km) |
