| West Carson to Oberkirch | 5,858.30 mi (9,428.03 km) |
| West Carson to Obernburg am Main | 5,822.95 mi (9,371.13 km) |
| West Carson to Obernkirchen | 5,696.95 mi (9,168.36 km) |
| West Carson to Oberschleissheim | 5,977.83 mi (9,620.39 km) |
| West Carson to Oberstdorf | 5,983.70 mi (9,629.83 km) |
| West Carson to Obertraubling | 5,957.12 mi (9,587.05 km) |
| West Carson to Obertshausen | 5,802.14 mi (9,337.65 km) |
| West Carson to Oberursel | 5,787.54 mi (9,314.14 km) |
| West Carson to Ochsenfurt | 5,860.04 mi (9,430.82 km) |
| West Carson to Ochsenhausen | 5,938.97 mi (9,557.85 km) |
| West Carson to Ochtrup | 5,645.03 mi (9,084.79 km) |
| West Carson to Odenthal | 5,702.01 mi (9,176.50 km) |
| West Carson to Oelde | 5,691.62 mi (9,159.77 km) |
| West Carson to Oelsnitz | 5,879.58 mi (9,462.27 km) |
| West Carson to Oer-Erkenschwick | 5,675.22 mi (9,133.38 km) |
