| Dover to Oberkirch | 350.98 mi (564.85 km) |
| Dover to Obernburg am Main | 355.49 mi (572.10 km) |
| Dover to Obernkirchen | 343.33 mi (552.53 km) |
| Dover to Oberschleissheim | 499.25 mi (803.47 km) |
| Dover to Oberstdorf | 478.67 mi (770.34 km) |
| Dover to Obertraubling | 503.86 mi (810.89 km) |
| Dover to Obertshausen | 337.91 mi (543.81 km) |
| Dover to Oberursel | 324.52 mi (522.26 km) |
| Dover to Ochsenfurt | 398.83 mi (641.86 km) |
| Dover to Ochsenhausen | 440.38 mi (708.73 km) |
| Dover to Ochtrup | 262.69 mi (422.76 km) |
| Dover to Odenthal | 252.11 mi (405.74 km) |
| Dover to Oelde | 298.24 mi (479.97 km) |
| Dover to Oelsnitz | 476.53 mi (766.90 km) |
| Dover to Oer-Erkenschwick | 258.57 mi (416.13 km) |
