| Plainfield to Oberkirch | 3,896.71 mi (6,271.15 km) |
| Plainfield to Obernburg am Main | 3,901.37 mi (6,278.65 km) |
| Plainfield to Obernkirchen | 3,831.08 mi (6,165.52 km) |
| Plainfield to Oberschleissheim | 4,048.53 mi (6,515.48 km) |
| Plainfield to Oberstdorf | 4,022.16 mi (6,473.04 km) |
| Plainfield to Obertraubling | 4,050.07 mi (6,517.95 km) |
| Plainfield to Obertshausen | 3,882.33 mi (6,248.01 km) |
| Plainfield to Oberursel | 3,868.07 mi (6,225.06 km) |
| Plainfield to Ochsenfurt | 3,944.31 mi (6,347.75 km) |
| Plainfield to Ochsenhausen | 3,987.70 mi (6,417.59 km) |
| Plainfield to Ochtrup | 3,757.71 mi (6,047.45 km) |
| Plainfield to Odenthal | 3,786.29 mi (6,093.45 km) |
| Plainfield to Oelde | 3,805.31 mi (6,124.06 km) |
| Plainfield to Oelsnitz | 4,004.50 mi (6,444.62 km) |
| Plainfield to Oer-Erkenschwick | 3,775.12 mi (6,075.47 km) |
