| Herselt to Obernburg am Main | 205.12 mi (330.11 km) |
| Herselt to Obernkirchen | 199.97 mi (321.83 km) |
| Herselt to Oberschleissheim | 355.90 mi (572.77 km) |
| Herselt to Oberstdorf | 349.87 mi (563.06 km) |
| Herselt to Obertraubling | 353.84 mi (569.44 km) |
| Herselt to Obertshausen | 186.19 mi (299.64 km) |
| Herselt to Oberursel | 172.12 mi (276.99 km) |
| Herselt to Ochsenfurt | 248.08 mi (399.25 km) |
| Herselt to Ochsenhausen | 306.23 mi (492.83 km) |
| Herselt to Ochtrup | 127.14 mi (204.60 km) |
| Herselt to Odenthal | 97.03 mi (156.15 km) |
| Herselt to Oelde | 150.72 mi (242.56 km) |
| Herselt to Oelsnitz | 321.37 mi (517.19 km) |
| Herselt to Oer-Erkenschwick | 110.06 mi (177.12 km) |
| Herselt to Oerlinghausen | 174.57 mi (280.94 km) |
