| Twickenham to Oberkirch | 424.48 mi (683.13 km) |
| Twickenham to Obernburg am Main | 429.56 mi (691.32 km) |
| Twickenham to Obernkirchen | 407.10 mi (655.16 km) |
| Twickenham to Oberschleissheim | 573.69 mi (923.27 km) |
| Twickenham to Oberstdorf | 551.93 mi (888.24 km) |
| Twickenham to Obertraubling | 578.10 mi (930.36 km) |
| Twickenham to Obertshausen | 411.74 mi (662.63 km) |
| Twickenham to Oberursel | 398.18 mi (640.81 km) |
| Twickenham to Ochsenfurt | 472.90 mi (761.06 km) |
| Twickenham to Ochsenhausen | 514.32 mi (827.71 km) |
| Twickenham to Ochtrup | 325.50 mi (523.84 km) |
| Twickenham to Odenthal | 323.55 mi (520.70 km) |
| Twickenham to Oelde | 364.67 mi (586.87 km) |
| Twickenham to Oelsnitz | 548.43 mi (882.62 km) |
| Twickenham to Oer-Erkenschwick | 326.16 mi (524.91 km) |
