| Grantsville to Oberkirch | 5,290.65 mi (8,514.47 km) |
| Grantsville to Obernburg am Main | 5,255.51 mi (8,457.93 km) |
| Grantsville to Obernkirchen | 5,130.20 mi (8,256.26 km) |
| Grantsville to Oberschleissheim | 5,410.44 mi (8,707.26 km) |
| Grantsville to Oberstdorf | 5,416.06 mi (8,716.31 km) |
| Grantsville to Obertraubling | 5,390.01 mi (8,674.39 km) |
| Grantsville to Obertshausen | 5,234.71 mi (8,424.45 km) |
| Grantsville to Oberursel | 5,220.09 mi (8,400.92 km) |
| Grantsville to Ochsenfurt | 5,292.70 mi (8,517.77 km) |
| Grantsville to Ochsenhausen | 5,371.37 mi (8,644.38 km) |
| Grantsville to Ochtrup | 5,077.83 mi (8,171.97 km) |
| Grantsville to Odenthal | 5,134.53 mi (8,263.23 km) |
| Grantsville to Oelde | 5,124.49 mi (8,247.07 km) |
| Grantsville to Oelsnitz | 5,312.96 mi (8,550.39 km) |
| Grantsville to Oer-Erkenschwick | 5,107.88 mi (8,220.35 km) |
