| Herk-de-Stad to Obernburg am Main | 190.84 mi (307.12 km) |
| Herk-de-Stad to Obernkirchen | 192.66 mi (310.06 km) |
| Herk-de-Stad to Oberschleissheim | 341.43 mi (549.48 km) |
| Herk-de-Stad to Oberstdorf | 335.75 mi (540.34 km) |
| Herk-de-Stad to Obertraubling | 339.60 mi (546.53 km) |
| Herk-de-Stad to Obertshausen | 172.03 mi (276.85 km) |
| Herk-de-Stad to Oberursel | 158.04 mi (254.34 km) |
| Herk-de-Stad to Ochsenfurt | 233.86 mi (376.37 km) |
| Herk-de-Stad to Ochsenhausen | 291.93 mi (469.82 km) |
| Herk-de-Stad to Ochtrup | 123.23 mi (198.31 km) |
| Herk-de-Stad to Odenthal | 85.03 mi (136.84 km) |
| Herk-de-Stad to Oelde | 142.62 mi (229.53 km) |
| Herk-de-Stad to Oelsnitz | 308.47 mi (496.43 km) |
| Herk-de-Stad to Oer-Erkenschwick | 102.24 mi (164.55 km) |
| Herk-de-Stad to Oerlinghausen | 166.50 mi (267.95 km) |
