| Petaluma to Oberkirch | 5,723.76 mi (9,211.51 km) |
| Petaluma to Obernburg am Main | 5,679.71 mi (9,140.60 km) |
| Petaluma to Obernkirchen | 5,544.09 mi (8,922.36 km) |
| Petaluma to Oberschleissheim | 5,832.84 mi (9,387.05 km) |
| Petaluma to Oberstdorf | 5,846.32 mi (9,408.74 km) |
| Petaluma to Obertraubling | 5,807.41 mi (9,346.13 km) |
| Petaluma to Obertshausen | 5,658.97 mi (9,107.24 km) |
| Petaluma to Oberursel | 5,644.63 mi (9,084.15 km) |
| Petaluma to Ochsenfurt | 5,714.57 mi (9,196.72 km) |
| Petaluma to Ochsenhausen | 5,800.10 mi (9,334.37 km) |
| Petaluma to Ochtrup | 5,498.18 mi (8,848.46 km) |
| Petaluma to Odenthal | 5,560.25 mi (8,948.35 km) |
| Petaluma to Oelde | 5,543.42 mi (8,921.27 km) |
| Petaluma to Oelsnitz | 5,724.42 mi (9,212.57 km) |
| Petaluma to Oer-Erkenschwick | 5,530.52 mi (8,900.51 km) |
