| Pacific Grove to Oberkirch | 5,800.86 mi (9,335.58 km) |
| Pacific Grove to Obernburg am Main | 5,758.91 mi (9,268.06 km) |
| Pacific Grove to Obernkirchen | 5,625.52 mi (9,053.40 km) |
| Pacific Grove to Oberschleissheim | 5,912.59 mi (9,515.39 km) |
| Pacific Grove to Oberstdorf | 5,924.21 mi (9,534.10 km) |
| Pacific Grove to Obertraubling | 5,888.28 mi (9,476.27 km) |
| Pacific Grove to Obertshausen | 5,738.14 mi (9,234.64 km) |
| Pacific Grove to Oberursel | 5,723.72 mi (9,211.43 km) |
| Pacific Grove to Ochsenfurt | 5,794.34 mi (9,325.09 km) |
| Pacific Grove to Ochsenhausen | 5,878.33 mi (9,460.25 km) |
| Pacific Grove to Ochtrup | 5,578.11 mi (8,977.10 km) |
| Pacific Grove to Odenthal | 5,638.99 mi (9,075.07 km) |
| Pacific Grove to Oelde | 5,623.72 mi (9,050.50 km) |
| Pacific Grove to Oelsnitz | 5,806.54 mi (9,344.72 km) |
| Pacific Grove to Oer-Erkenschwick | 5,609.96 mi (9,028.35 km) |
