| Bletchley to Oberkirch | 456.45 mi (734.59 km) |
| Bletchley to Obernburg am Main | 454.67 mi (731.72 km) |
| Bletchley to Obernkirchen | 417.87 mi (672.50 km) |
| Bletchley to Oberschleissheim | 602.10 mi (968.98 km) |
| Bletchley to Oberstdorf | 584.25 mi (940.26 km) |
| Bletchley to Obertraubling | 603.49 mi (971.22 km) |
| Bletchley to Obertshausen | 436.07 mi (701.79 km) |
| Bletchley to Oberursel | 422.09 mi (679.28 km) |
| Bletchley to Ochsenfurt | 497.83 mi (801.17 km) |
| Bletchley to Ochsenhausen | 545.21 mi (877.44 km) |
| Bletchley to Ochtrup | 336.40 mi (541.38 km) |
| Bletchley to Odenthal | 343.77 mi (553.24 km) |
| Bletchley to Oelde | 378.48 mi (609.10 km) |
| Bletchley to Oelsnitz | 568.11 mi (914.28 km) |
| Bletchley to Oer-Erkenschwick | 341.64 mi (549.82 km) |
