| Bowling Green to Oberkirch | 4,550.49 mi (7,323.31 km) |
| Bowling Green to Obernburg am Main | 4,548.01 mi (7,319.31 km) |
| Bowling Green to Obernkirchen | 4,466.18 mi (7,187.63 km) |
| Bowling Green to Oberschleissheim | 4,698.32 mi (7,561.22 km) |
| Bowling Green to Oberstdorf | 4,677.30 mi (7,527.38 km) |
| Bowling Green to Obertraubling | 4,695.87 mi (7,557.27 km) |
| Bowling Green to Obertshausen | 4,528.41 mi (7,287.77 km) |
| Bowling Green to Oberursel | 4,513.90 mi (7,264.42 km) |
| Bowling Green to Ochsenfurt | 4,590.40 mi (7,387.53 km) |
| Bowling Green to Ochsenhausen | 4,640.68 mi (7,468.45 km) |
| Bowling Green to Ochtrup | 4,395.96 mi (7,074.61 km) |
| Bowling Green to Odenthal | 4,430.38 mi (7,130.01 km) |
| Bowling Green to Oelde | 4,444.03 mi (7,151.98 km) |
| Bowling Green to Oelsnitz | 4,643.79 mi (7,473.46 km) |
| Bowling Green to Oer-Erkenschwick | 4,416.09 mi (7,107.00 km) |
