| San Mateo to Oberkirch | 5,756.18 mi (9,263.67 km) |
| San Mateo to Obernburg am Main | 5,713.03 mi (9,194.23 km) |
| San Mateo to Obernkirchen | 5,578.37 mi (8,977.52 km) |
| San Mateo to Oberschleissheim | 5,866.41 mi (9,441.07 km) |
| San Mateo to Oberstdorf | 5,879.09 mi (9,461.47 km) |
| San Mateo to Obertraubling | 5,841.46 mi (9,400.93 km) |
| San Mateo to Obertshausen | 5,692.28 mi (9,160.83 km) |
| San Mateo to Oberursel | 5,677.90 mi (9,137.69 km) |
| San Mateo to Ochsenfurt | 5,748.14 mi (9,250.74 km) |
| San Mateo to Ochsenhausen | 5,833.01 mi (9,387.32 km) |
| San Mateo to Ochtrup | 5,531.80 mi (8,902.58 km) |
| San Mateo to Odenthal | 5,593.36 mi (9,001.64 km) |
| San Mateo to Oelde | 5,577.21 mi (8,975.64 km) |
| San Mateo to Oelsnitz | 5,759.01 mi (9,268.23 km) |
| San Mateo to Oer-Erkenschwick | 5,563.93 mi (8,954.29 km) |
