| Parker to Oberkirch | 5,102.09 mi (8,211.02 km) |
| Parker to Obernburg am Main | 5,076.42 mi (8,169.71 km) |
| Parker to Obernkirchen | 4,962.72 mi (7,986.73 km) |
| Parker to Oberschleissheim | 5,231.71 mi (8,419.62 km) |
| Parker to Oberstdorf | 5,229.31 mi (8,415.75 km) |
| Parker to Obertraubling | 5,216.50 mi (8,395.14 km) |
| Parker to Obertshausen | 5,055.74 mi (8,136.43 km) |
| Parker to Oberursel | 5,040.99 mi (8,112.69 km) |
| Parker to Ochsenfurt | 5,115.60 mi (8,232.77 km) |
| Parker to Ochsenhausen | 5,186.57 mi (8,346.98 km) |
| Parker to Ochtrup | 4,904.36 mi (7,892.80 km) |
| Parker to Odenthal | 4,955.05 mi (7,974.38 km) |
| Parker to Oelde | 4,952.01 mi (7,969.49 km) |
| Parker to Oelsnitz | 5,146.11 mi (8,281.86 km) |
| Parker to Oer-Erkenschwick | 4,931.80 mi (7,936.96 km) |
