| Mount Clemens to Oberkirch | 4,150.28 mi (6,679.23 km) |
| Mount Clemens to Obernburg am Main | 4,143.25 mi (6,667.91 km) |
| Mount Clemens to Obernkirchen | 4,055.53 mi (6,526.74 km) |
| Mount Clemens to Oberschleissheim | 4,295.11 mi (6,912.31 km) |
| Mount Clemens to Oberstdorf | 4,277.69 mi (6,884.28 km) |
| Mount Clemens to Obertraubling | 4,290.26 mi (6,904.51 km) |
| Mount Clemens to Obertshausen | 4,123.36 mi (6,635.91 km) |
| Mount Clemens to Oberursel | 4,108.75 mi (6,612.40 km) |
| Mount Clemens to Ochsenfurt | 4,185.21 mi (6,735.45 km) |
| Mount Clemens to Ochsenhausen | 4,239.68 mi (6,823.11 km) |
| Mount Clemens to Ochtrup | 3,987.00 mi (6,416.46 km) |
| Mount Clemens to Odenthal | 4,024.44 mi (6,476.72 km) |
| Mount Clemens to Oelde | 4,035.20 mi (6,494.02 km) |
| Mount Clemens to Oelsnitz | 4,234.78 mi (6,815.22 km) |
| Mount Clemens to Oer-Erkenschwick | 4,008.48 mi (6,451.03 km) |
