| Fort Morgan to Oberkirch | 5,029.11 mi (8,093.56 km) |
| Fort Morgan to Obernburg am Main | 5,003.65 mi (8,052.60 km) |
| Fort Morgan to Obernkirchen | 4,890.29 mi (7,870.16 km) |
| Fort Morgan to Oberschleissheim | 5,158.92 mi (8,302.49 km) |
| Fort Morgan to Oberstdorf | 5,156.35 mi (8,298.34 km) |
| Fort Morgan to Obertraubling | 5,143.85 mi (8,278.23 km) |
| Fort Morgan to Obertshausen | 4,982.98 mi (8,019.32 km) |
| Fort Morgan to Oberursel | 4,968.22 mi (7,995.58 km) |
| Fort Morgan to Ochsenfurt | 5,042.88 mi (8,115.73 km) |
| Fort Morgan to Ochsenhausen | 5,113.66 mi (8,229.63 km) |
| Fort Morgan to Ochtrup | 4,831.76 mi (7,775.96 km) |
| Fort Morgan to Odenthal | 4,882.28 mi (7,857.28 km) |
| Fort Morgan to Oelde | 4,879.43 mi (7,852.68 km) |
| Fort Morgan to Oelsnitz | 5,073.67 mi (8,165.28 km) |
| Fort Morgan to Oer-Erkenschwick | 4,859.12 mi (7,820.00 km) |
