| Boca Raton to Oberkirch | 4,796.02 mi (7,718.45 km) |
| Boca Raton to Obernburg am Main | 4,815.18 mi (7,749.28 km) |
| Boca Raton to Obernkirchen | 4,765.83 mi (7,669.86 km) |
| Boca Raton to Oberschleissheim | 4,953.96 mi (7,972.63 km) |
| Boca Raton to Oberstdorf | 4,916.53 mi (7,912.39 km) |
| Boca Raton to Obertraubling | 4,963.31 mi (7,987.67 km) |
| Boca Raton to Obertshausen | 4,797.49 mi (7,720.81 km) |
| Boca Raton to Oberursel | 4,783.89 mi (7,698.93 km) |
| Boca Raton to Ochsenfurt | 4,858.53 mi (7,819.04 km) |
| Boca Raton to Ochsenhausen | 4,887.35 mi (7,865.44 km) |
| Boca Raton to Ochtrup | 4,688.42 mi (7,545.28 km) |
| Boca Raton to Odenthal | 4,706.54 mi (7,574.44 km) |
| Boca Raton to Oelde | 4,734.58 mi (7,619.57 km) |
| Boca Raton to Oelsnitz | 4,930.07 mi (7,934.18 km) |
| Boca Raton to Oer-Erkenschwick | 4,701.03 mi (7,565.58 km) |
