| Holt to Oberkirch | 4,212.04 mi (6,778.63 km) |
| Holt to Obernburg am Main | 4,203.30 mi (6,764.57 km) |
| Holt to Obernkirchen | 4,113.10 mi (6,619.40 km) |
| Holt to Oberschleissheim | 4,355.69 mi (7,009.81 km) |
| Holt to Oberstdorf | 4,339.61 mi (6,983.93 km) |
| Holt to Obertraubling | 4,349.91 mi (7,000.51 km) |
| Holt to Obertshausen | 4,183.32 mi (6,732.41 km) |
| Holt to Oberursel | 4,168.68 mi (6,708.84 km) |
| Holt to Ochsenfurt | 4,245.08 mi (6,831.80 km) |
| Holt to Ochsenhausen | 4,301.12 mi (6,921.99 km) |
| Holt to Ochtrup | 4,045.39 mi (6,510.42 km) |
| Holt to Odenthal | 4,084.09 mi (6,572.71 km) |
| Holt to Oelde | 4,093.61 mi (6,588.03 km) |
| Holt to Oelsnitz | 4,293.01 mi (6,908.93 km) |
| Holt to Oer-Erkenschwick | 4,067.44 mi (6,545.91 km) |
