| Keila to Obernburg am Main | 891.72 mi (1,435.09 km) |
| Keila to Obernkirchen | 765.17 mi (1,231.43 km) |
| Keila to Oberschleissheim | 923.52 mi (1,486.27 km) |
| Keila to Oberstdorf | 1,003.52 mi (1,615.00 km) |
| Keila to Obertraubling | 866.98 mi (1,395.27 km) |
| Keila to Obertshausen | 887.65 mi (1,428.54 km) |
| Keila to Oberursel | 887.33 mi (1,428.01 km) |
| Keila to Ochsenfurt | 878.00 mi (1,413.00 km) |
| Keila to Ochsenhausen | 972.03 mi (1,564.33 km) |
| Keila to Ochtrup | 826.51 mi (1,330.13 km) |
| Keila to Odenthal | 886.04 mi (1,425.94 km) |
| Keila to Oelde | 815.33 mi (1,312.15 km) |
| Keila to Oelsnitz | 781.67 mi (1,257.97 km) |
| Keila to Oer-Erkenschwick | 851.76 mi (1,370.78 km) |
| Keila to Oerlinghausen | 793.36 mi (1,276.79 km) |
