| Honefoss to Oberkirch | 808.62 mi (1,301.34 km) |
| Honefoss to Obernburg am Main | 714.95 mi (1,150.61 km) |
| Honefoss to Obernkirchen | 547.72 mi (881.47 km) |
| Honefoss to Oberschleissheim | 824.91 mi (1,327.57 km) |
| Honefoss to Oberstdorf | 881.42 mi (1,418.51 km) |
| Honefoss to Obertraubling | 777.43 mi (1,251.16 km) |
| Honefoss to Obertshausen | 700.20 mi (1,126.86 km) |
| Honefoss to Oberursel | 691.69 mi (1,113.17 km) |
| Honefoss to Ochsenfurt | 726.69 mi (1,169.50 km) |
| Honefoss to Ochsenhausen | 835.77 mi (1,345.04 km) |
| Honefoss to Ochtrup | 562.74 mi (905.65 km) |
| Honefoss to Odenthal | 642.98 mi (1,034.78 km) |
| Honefoss to Oelde | 581.66 mi (936.10 km) |
| Honefoss to Oelsnitz | 677.58 mi (1,090.46 km) |
| Honefoss to Oer-Erkenschwick | 600.55 mi (966.49 km) |
