| Forest to Obernburg am Main | 222.80 mi (358.56 km) |
| Forest to Obernkirchen | 229.09 mi (368.68 km) |
| Forest to Oberschleissheim | 369.67 mi (594.93 km) |
| Forest to Oberstdorf | 357.32 mi (575.06 km) |
| Forest to Obertraubling | 371.47 mi (597.82 km) |
| Forest to Obertshausen | 204.96 mi (329.84 km) |
| Forest to Oberursel | 191.51 mi (308.20 km) |
| Forest to Ochsenfurt | 266.12 mi (428.28 km) |
| Forest to Ochsenhausen | 315.59 mi (507.89 km) |
| Forest to Ochtrup | 156.32 mi (251.57 km) |
| Forest to Odenthal | 122.54 mi (197.21 km) |
| Forest to Oelde | 179.55 mi (288.96 km) |
| Forest to Oelsnitz | 344.73 mi (554.79 km) |
| Forest to Oer-Erkenschwick | 138.95 mi (223.62 km) |
| Forest to Oerlinghausen | 203.43 mi (327.38 km) |
