| Radford to Oberkirch | 4,304.88 mi (6,928.03 km) |
| Radford to Obernburg am Main | 4,308.57 mi (6,933.97 km) |
| Radford to Obernkirchen | 4,236.14 mi (6,817.41 km) |
| Radford to Oberschleissheim | 4,456.24 mi (7,171.62 km) |
| Radford to Oberstdorf | 4,430.51 mi (7,130.21 km) |
| Radford to Obertraubling | 4,457.19 mi (7,173.15 km) |
| Radford to Obertshausen | 4,289.44 mi (6,903.18 km) |
| Radford to Oberursel | 4,275.13 mi (6,880.15 km) |
| Radford to Ochsenfurt | 4,351.44 mi (7,002.96 km) |
| Radford to Ochsenhausen | 4,395.80 mi (7,074.35 km) |
| Radford to Ochtrup | 4,163.37 mi (6,700.29 km) |
| Radford to Odenthal | 4,193.03 mi (6,748.04 km) |
| Radford to Oelde | 4,211.09 mi (6,777.09 km) |
| Radford to Oelsnitz | 4,410.48 mi (7,097.97 km) |
| Radford to Oer-Erkenschwick | 4,181.30 mi (6,729.16 km) |
