| Herten to Obernburg am Main | 150.00 mi (241.40 km) |
| Herten to Obernkirchen | 96.26 mi (154.92 km) |
| Herten to Oberschleissheim | 303.97 mi (489.19 km) |
| Herten to Oberstdorf | 322.02 mi (518.24 km) |
| Herten to Obertraubling | 287.14 mi (462.11 km) |
| Herten to Obertshausen | 129.32 mi (208.13 km) |
| Herten to Oberursel | 115.19 mi (185.38 km) |
| Herten to Ochsenfurt | 186.21 mi (299.68 km) |
| Herten to Ochsenhausen | 274.08 mi (441.09 km) |
| Herten to Ochtrup | 41.91 mi (67.45 km) |
| Herten to Odenthal | 39.16 mi (63.02 km) |
| Herten to Oelde | 46.41 mi (74.69 km) |
| Herten to Oelsnitz | 233.54 mi (375.84 km) |
| Herten to Oer-Erkenschwick | 5.82 mi (9.37 km) |
| Herten to Oerlinghausen | 70.27 mi (113.09 km) |
