| Totteridge to Oberkirch | 424.84 mi (683.71 km) |
| Totteridge to Obernburg am Main | 426.55 mi (686.46 km) |
| Totteridge to Obernkirchen | 398.90 mi (641.97 km) |
| Totteridge to Oberschleissheim | 572.26 mi (920.96 km) |
| Totteridge to Oberstdorf | 552.53 mi (889.21 km) |
| Totteridge to Obertraubling | 575.28 mi (925.82 km) |
| Totteridge to Obertshausen | 408.38 mi (657.22 km) |
| Totteridge to Oberursel | 394.62 mi (635.09 km) |
| Totteridge to Ochsenfurt | 469.83 mi (756.12 km) |
| Totteridge to Ochsenhausen | 514.12 mi (827.40 km) |
| Totteridge to Ochtrup | 317.24 mi (510.55 km) |
| Totteridge to Odenthal | 318.44 mi (512.47 km) |
| Totteridge to Oelde | 357.36 mi (575.12 km) |
| Totteridge to Oelsnitz | 543.30 mi (874.36 km) |
| Totteridge to Oer-Erkenschwick | 319.36 mi (513.95 km) |
