| Tualatin to Oerlinghausen | 5,118.95 mi (8,238.16 km) |
| Tualatin to Oestrich-Winkel | 5,216.67 mi (8,395.42 km) |
| Tualatin to Offenburg | 5,303.62 mi (8,535.36 km) |
| Tualatin to Oftersheim | 5,267.37 mi (8,477.02 km) |
| Tualatin to Ohrdruf | 5,233.12 mi (8,421.90 km) |
| Tualatin to Ohringen | 5,299.52 mi (8,528.75 km) |
| Tualatin to Olbernhau | 5,301.02 mi (8,531.17 km) |
| Tualatin to Olching | 5,401.80 mi (8,693.36 km) |
| Tualatin to Oldenburg | 5,040.60 mi (8,112.06 km) |
| Tualatin to Oldenburg in Holstein | 5,032.84 mi (8,099.57 km) |
| Tualatin to Olfen | 5,103.03 mi (8,212.54 km) |
| Tualatin to Olpe | 5,154.02 mi (8,294.60 km) |
| Tualatin to Olsberg | 5,150.30 mi (8,288.60 km) |
| Tualatin to Oranienburg | 5,174.26 mi (8,327.17 km) |
| Tualatin to Ortenberg | 5,221.51 mi (8,403.20 km) |
