| Forest Grove to Nyon | 5,380.04 mi (8,658.33 km) |
| Forest Grove to Oberriet | 5,410.88 mi (8,707.97 km) |
| Forest Grove to Obersiggenthal | 5,369.20 mi (8,640.90 km) |
| Forest Grove to Oberwil | 5,349.03 mi (8,608.43 km) |
| Forest Grove to Oberwingert | 5,379.37 mi (8,657.26 km) |
| Forest Grove to Oftringen | 5,369.64 mi (8,641.60 km) |
| Forest Grove to Olten | 5,367.28 mi (8,637.80 km) |
| Forest Grove to Onex | 5,388.01 mi (8,671.16 km) |
| Forest Grove to Opfikon | 5,379.21 mi (8,657.01 km) |
| Forest Grove to Ostermundigen | 5,379.73 mi (8,657.85 km) |
| Forest Grove to Payerne | 5,373.39 mi (8,647.63 km) |
| Forest Grove to Pfaffikon | 5,388.51 mi (8,671.97 km) |
| Forest Grove to Plan-les-Ouates | 5,389.40 mi (8,673.41 km) |
| Forest Grove to Pratteln | 5,352.53 mi (8,614.07 km) |
| Forest Grove to Prilly | 5,381.05 mi (8,659.96 km) |
