| Cowes to Oberkirch | 446.71 mi (718.91 km) |
| Cowes to Obernburg am Main | 464.80 mi (748.02 km) |
| Cowes to Obernkirchen | 459.47 mi (739.44 km) |
| Cowes to Oberschleissheim | 601.89 mi (968.65 km) |
| Cowes to Oberstdorf | 572.03 mi (920.59 km) |
| Cowes to Obertraubling | 611.56 mi (984.22 km) |
| Cowes to Obertshausen | 448.38 mi (721.59 km) |
| Cowes to Oberursel | 435.63 mi (701.07 km) |
| Cowes to Ochsenfurt | 507.97 mi (817.49 km) |
| Cowes to Ochsenhausen | 537.96 mi (865.76 km) |
| Cowes to Ochtrup | 378.50 mi (609.13 km) |
| Cowes to Odenthal | 367.09 mi (590.77 km) |
| Cowes to Oelde | 414.66 mi (667.33 km) |
| Cowes to Oelsnitz | 590.41 mi (950.17 km) |
| Cowes to Oer-Erkenschwick | 374.96 mi (603.45 km) |
