| Corvallis to Nuth | 5,172.59 mi (8,324.48 km) |
| Corvallis to Oegstgeest | 5,066.00 mi (8,152.95 km) |
| Corvallis to Oirschot | 5,125.10 mi (8,248.05 km) |
| Corvallis to Oisterwijk | 5,117.92 mi (8,236.50 km) |
| Corvallis to Oldebroek | 5,086.24 mi (8,185.52 km) |
| Corvallis to Oldenzaal | 5,118.68 mi (8,237.71 km) |
| Corvallis to Ommen | 5,094.93 mi (8,199.50 km) |
| Corvallis to Oosterend | 5,058.97 mi (8,141.63 km) |
| Corvallis to Oosterhout | 5,106.00 mi (8,217.31 km) |
| Corvallis to Oosterwolde | 5,065.10 mi (8,151.49 km) |
| Corvallis to Oostzaan | 5,062.34 mi (8,147.04 km) |
| Corvallis to Opmeer | 5,049.03 mi (8,125.63 km) |
| Corvallis to Oss | 5,115.44 mi (8,232.50 km) |
| Corvallis to Oud-Beijerland | 5,084.83 mi (8,183.24 km) |
| Corvallis to Oudenbosch | 5,100.67 mi (8,208.73 km) |
