| Amersham to Oberkirch | 441.58 mi (710.65 km) |
| Amersham to Obernburg am Main | 444.02 mi (714.59 km) |
| Amersham to Obernkirchen | 415.45 mi (668.60 km) |
| Amersham to Oberschleissheim | 589.52 mi (948.74 km) |
| Amersham to Oberstdorf | 569.19 mi (916.03 km) |
| Amersham to Obertraubling | 592.75 mi (953.93 km) |
| Amersham to Obertshausen | 425.88 mi (685.38 km) |
| Amersham to Oberursel | 412.13 mi (663.26 km) |
| Amersham to Ochsenfurt | 487.32 mi (784.26 km) |
| Amersham to Ochsenhausen | 531.06 mi (854.65 km) |
| Amersham to Ochtrup | 333.79 mi (537.18 km) |
| Amersham to Odenthal | 335.88 mi (540.55 km) |
| Amersham to Oelde | 374.30 mi (602.38 km) |
| Amersham to Oelsnitz | 560.73 mi (902.41 km) |
| Amersham to Oer-Erkenschwick | 336.47 mi (541.49 km) |
