| Trotwood to Oberkirch | 4,333.79 mi (6,974.56 km) |
| Trotwood to Obernburg am Main | 4,329.53 mi (6,967.71 km) |
| Trotwood to Obernkirchen | 4,245.48 mi (6,832.44 km) |
| Trotwood to Oberschleissheim | 4,480.48 mi (7,210.63 km) |
| Trotwood to Oberstdorf | 4,460.87 mi (7,179.07 km) |
| Trotwood to Obertraubling | 4,477.10 mi (7,205.20 km) |
| Trotwood to Obertshausen | 4,309.82 mi (6,935.98 km) |
| Trotwood to Oberursel | 4,295.27 mi (6,912.57 km) |
| Trotwood to Ochsenfurt | 4,371.77 mi (7,035.68 km) |
| Trotwood to Ochsenhausen | 4,423.69 mi (7,119.24 km) |
| Trotwood to Ochtrup | 4,175.87 mi (6,720.41 km) |
| Trotwood to Odenthal | 4,211.43 mi (6,777.64 km) |
| Trotwood to Oelde | 4,223.99 mi (6,797.86 km) |
| Trotwood to Oelsnitz | 4,423.72 mi (7,119.29 km) |
| Trotwood to Oer-Erkenschwick | 4,196.50 mi (6,753.62 km) |
