| Homosassa Springs to Oberkirch | 4,782.43 mi (7,696.57 km) |
| Homosassa Springs to Obernburg am Main | 4,795.48 mi (7,717.59 km) |
| Homosassa Springs to Obernkirchen | 4,736.55 mi (7,622.75 km) |
| Homosassa Springs to Oberschleissheim | 4,938.20 mi (7,947.27 km) |
| Homosassa Springs to Oberstdorf | 4,905.28 mi (7,894.29 km) |
| Homosassa Springs to Obertraubling | 4,944.21 mi (7,956.93 km) |
| Homosassa Springs to Obertshausen | 4,777.17 mi (7,688.10 km) |
| Homosassa Springs to Oberursel | 4,763.24 mi (7,665.70 km) |
| Homosassa Springs to Ochsenfurt | 4,838.76 mi (7,787.23 km) |
| Homosassa Springs to Ochsenhausen | 4,873.85 mi (7,843.71 km) |
| Homosassa Springs to Ochtrup | 4,660.86 mi (7,500.94 km) |
| Homosassa Springs to Odenthal | 4,683.76 mi (7,537.78 km) |
| Homosassa Springs to Oelde | 4,707.79 mi (7,576.46 km) |
| Homosassa Springs to Oelsnitz | 4,905.40 mi (7,894.48 km) |
| Homosassa Springs to Oer-Erkenschwick | 4,675.70 mi (7,524.82 km) |
