| Castle Bromwich to Oberkirch | 512.43 mi (824.68 km) |
| Castle Bromwich to Obernburg am Main | 507.28 mi (816.39 km) |
| Castle Bromwich to Obernkirchen | 459.66 mi (739.75 km) |
| Castle Bromwich to Oberschleissheim | 656.34 mi (1,056.28 km) |
| Castle Bromwich to Oberstdorf | 640.27 mi (1,030.41 km) |
| Castle Bromwich to Obertraubling | 655.98 mi (1,055.69 km) |
| Castle Bromwich to Obertshausen | 488.27 mi (785.79 km) |
| Castle Bromwich to Oberursel | 474.06 mi (762.93 km) |
| Castle Bromwich to Ochsenfurt | 550.22 mi (885.49 km) |
| Castle Bromwich to Ochsenhausen | 600.70 mi (966.74 km) |
| Castle Bromwich to Ochtrup | 379.10 mi (610.10 km) |
| Castle Bromwich to Odenthal | 393.70 mi (633.59 km) |
| Castle Bromwich to Oelde | 423.25 mi (681.16 km) |
| Castle Bromwich to Oelsnitz | 616.64 mi (992.39 km) |
| Castle Bromwich to Oer-Erkenschwick | 388.10 mi (624.58 km) |
