| Horwich to Oberkirch | 577.77 mi (929.83 km) |
| Horwich to Obernburg am Main | 562.32 mi (904.96 km) |
| Horwich to Obernkirchen | 493.51 mi (794.23 km) |
| Horwich to Oberschleissheim | 714.90 mi (1,150.53 km) |
| Horwich to Oberstdorf | 705.27 mi (1,135.02 km) |
| Horwich to Obertraubling | 709.65 mi (1,142.07 km) |
| Horwich to Obertshausen | 542.46 mi (873.00 km) |
| Horwich to Oberursel | 527.87 mi (849.53 km) |
| Horwich to Ochsenfurt | 604.36 mi (972.62 km) |
| Horwich to Ochsenhausen | 663.68 mi (1,068.08 km) |
| Horwich to Ochtrup | 416.34 mi (670.04 km) |
| Horwich to Odenthal | 444.10 mi (714.71 km) |
| Horwich to Oelde | 463.16 mi (745.39 km) |
| Horwich to Oelsnitz | 661.44 mi (1,064.48 km) |
| Horwich to Oer-Erkenschwick | 431.83 mi (694.96 km) |
