| King of Prussia to Oberkirch | 3,958.87 mi (6,371.19 km) |
| King of Prussia to Obernburg am Main | 3,963.40 mi (6,378.47 km) |
| King of Prussia to Obernkirchen | 3,892.80 mi (6,264.85 km) |
| King of Prussia to Oberschleissheim | 4,110.63 mi (6,615.42 km) |
| King of Prussia to Oberstdorf | 4,084.35 mi (6,573.12 km) |
| King of Prussia to Obertraubling | 4,112.08 mi (6,617.76 km) |
| King of Prussia to Obertshausen | 3,944.35 mi (6,347.81 km) |
| King of Prussia to Oberursel | 3,930.08 mi (6,324.85 km) |
| King of Prussia to Ochsenfurt | 4,006.33 mi (6,447.56 km) |
| King of Prussia to Ochsenhausen | 4,049.85 mi (6,517.61 km) |
| King of Prussia to Ochtrup | 3,819.51 mi (6,146.91 km) |
| King of Prussia to Odenthal | 3,848.26 mi (6,193.17 km) |
| King of Prussia to Oelde | 3,867.13 mi (6,223.55 km) |
| King of Prussia to Oelsnitz | 4,066.35 mi (6,544.17 km) |
| King of Prussia to Oer-Erkenschwick | 3,837.00 mi (6,175.06 km) |
