| Hainichen to Obernburg am Main | 191.99 mi (308.97 km) |
| Hainichen to Obernkirchen | 193.83 mi (311.94 km) |
| Hainichen to Oberschleissheim | 200.44 mi (322.58 km) |
| Hainichen to Oberstdorf | 277.47 mi (446.55 km) |
| Hainichen to Obertraubling | 144.86 mi (233.12 km) |
| Hainichen to Obertshausen | 198.57 mi (319.57 km) |
| Hainichen to Oberursel | 206.40 mi (332.17 km) |
| Hainichen to Ochsenfurt | 162.86 mi (262.09 km) |
| Hainichen to Ochsenhausen | 245.69 mi (395.40 km) |
| Hainichen to Ochtrup | 268.62 mi (432.30 km) |
| Hainichen to Odenthal | 261.22 mi (420.39 km) |
| Hainichen to Oelde | 222.55 mi (358.16 km) |
| Hainichen to Oelsnitz | 56.75 mi (91.32 km) |
| Hainichen to Oer-Erkenschwick | 257.89 mi (415.03 km) |
| Hainichen to Oerlinghausen | 203.85 mi (328.07 km) |
