| Tualatin to Oberkirch | 5,303.52 mi (8,535.19 km) |
| Tualatin to Obernburg am Main | 5,253.57 mi (8,454.80 km) |
| Tualatin to Obernkirchen | 5,112.05 mi (8,227.04 km) |
| Tualatin to Oberschleissheim | 5,404.76 mi (8,698.12 km) |
| Tualatin to Oberstdorf | 5,423.44 mi (8,728.18 km) |
| Tualatin to Obertraubling | 5,376.25 mi (8,652.24 km) |
| Tualatin to Obertshausen | 5,232.99 mi (8,421.68 km) |
| Tualatin to Oberursel | 5,218.90 mi (8,399.00 km) |
| Tualatin to Ochsenfurt | 5,286.73 mi (8,508.18 km) |
| Tualatin to Ochsenhausen | 5,376.41 mi (8,652.50 km) |
| Tualatin to Ochtrup | 5,070.45 mi (8,160.10 km) |
| Tualatin to Odenthal | 5,135.74 mi (8,265.18 km) |
| Tualatin to Oelde | 5,114.54 mi (8,231.06 km) |
| Tualatin to Oelsnitz | 5,290.01 mi (8,513.45 km) |
| Tualatin to Oer-Erkenschwick | 5,104.12 mi (8,214.29 km) |
