| Kirkop to Oberkirch | 935.29 mi (1,505.21 km) |
| Kirkop to Obernburg am Main | 1,003.68 mi (1,615.27 km) |
| Kirkop to Obernkirchen | 1,164.89 mi (1,874.71 km) |
| Kirkop to Oberschleissheim | 870.12 mi (1,400.32 km) |
| Kirkop to Oberstdorf | 827.92 mi (1,332.40 km) |
| Kirkop to Obertraubling | 914.34 mi (1,471.48 km) |
| Kirkop to Obertshausen | 1,022.79 mi (1,646.03 km) |
| Kirkop to Oberursel | 1,035.35 mi (1,666.23 km) |
| Kirkop to Ochsenfurt | 979.58 mi (1,576.49 km) |
| Kirkop to Ochsenhausen | 876.18 mi (1,410.08 km) |
| Kirkop to Ochtrup | 1,185.81 mi (1,908.38 km) |
| Kirkop to Odenthal | 1,111.44 mi (1,788.70 km) |
| Kirkop to Oelde | 1,148.03 mi (1,847.58 km) |
| Kirkop to Oelsnitz | 1,013.65 mi (1,631.31 km) |
| Kirkop to Oer-Erkenschwick | 1,148.48 mi (1,848.30 km) |
