| Greenacres to Oberkirch | 4,785.00 mi (7,700.71 km) |
| Greenacres to Obernburg am Main | 4,803.79 mi (7,730.95 km) |
| Greenacres to Obernkirchen | 4,753.87 mi (7,650.62 km) |
| Greenacres to Oberschleissheim | 4,942.82 mi (7,954.70 km) |
| Greenacres to Oberstdorf | 4,905.66 mi (7,894.89 km) |
| Greenacres to Obertraubling | 4,951.97 mi (7,969.43 km) |
| Greenacres to Obertshausen | 4,786.06 mi (7,702.42 km) |
| Greenacres to Oberursel | 4,772.44 mi (7,680.50 km) |
| Greenacres to Ochsenfurt | 4,847.14 mi (7,800.71 km) |
| Greenacres to Ochsenhausen | 4,876.35 mi (7,847.72 km) |
| Greenacres to Ochtrup | 4,676.56 mi (7,526.19 km) |
| Greenacres to Odenthal | 4,694.96 mi (7,555.80 km) |
| Greenacres to Oelde | 4,722.77 mi (7,600.56 km) |
| Greenacres to Oelsnitz | 4,918.40 mi (7,915.40 km) |
| Greenacres to Oer-Erkenschwick | 4,689.30 mi (7,546.70 km) |
