| Pacific Grove to Nuth | 5,611.08 mi (9,030.17 km) |
| Pacific Grove to Oegstgeest | 5,505.01 mi (8,859.46 km) |
| Pacific Grove to Oirschot | 5,564.00 mi (8,954.39 km) |
| Pacific Grove to Oisterwijk | 5,556.83 mi (8,942.85 km) |
| Pacific Grove to Oldebroek | 5,530.37 mi (8,900.28 km) |
| Pacific Grove to Oldenzaal | 5,565.29 mi (8,956.47 km) |
| Pacific Grove to Ommen | 5,540.78 mi (8,917.02 km) |
| Pacific Grove to Oosterend | 5,505.57 mi (8,860.36 km) |
| Pacific Grove to Oosterhout | 5,544.11 mi (8,922.39 km) |
| Pacific Grove to Oosterwolde | 5,512.28 mi (8,871.16 km) |
| Pacific Grove to Oostzaan | 5,503.49 mi (8,857.00 km) |
| Pacific Grove to Opmeer | 5,491.36 mi (8,837.49 km) |
| Pacific Grove to Oss | 5,555.96 mi (8,941.46 km) |
| Pacific Grove to Oud-Beijerland | 5,522.25 mi (8,887.20 km) |
| Pacific Grove to Oudenbosch | 5,537.59 mi (8,911.89 km) |
