| Redwood City to Oberkirch | 5,756.72 mi (9,264.54 km) |
| Redwood City to Obernburg am Main | 5,713.71 mi (9,195.32 km) |
| Redwood City to Obernkirchen | 5,579.20 mi (8,978.85 km) |
| Redwood City to Oberschleissheim | 5,867.12 mi (9,442.22 km) |
| Redwood City to Oberstdorf | 5,879.68 mi (9,462.43 km) |
| Redwood City to Obertraubling | 5,842.25 mi (9,402.20 km) |
| Redwood City to Obertshausen | 5,692.95 mi (9,161.92 km) |
| Redwood City to Oberursel | 5,678.57 mi (9,138.77 km) |
| Redwood City to Ochsenfurt | 5,748.86 mi (9,251.89 km) |
| Redwood City to Ochsenhausen | 5,833.62 mi (9,388.31 km) |
| Redwood City to Ochtrup | 5,532.53 mi (8,903.75 km) |
| Redwood City to Odenthal | 5,594.01 mi (9,002.69 km) |
| Redwood City to Oelde | 5,577.96 mi (8,976.85 km) |
| Redwood City to Oelsnitz | 5,759.88 mi (9,269.64 km) |
| Redwood City to Oer-Erkenschwick | 5,564.63 mi (8,955.40 km) |
