| Asker to Oberkirch | 786.40 mi (1,265.59 km) |
| Asker to Obernburg am Main | 692.35 mi (1,114.23 km) |
| Asker to Obernkirchen | 525.26 mi (845.33 km) |
| Asker to Oberschleissheim | 801.59 mi (1,290.04 km) |
| Asker to Oberstdorf | 858.40 mi (1,381.46 km) |
| Asker to Obertraubling | 754.00 mi (1,213.45 km) |
| Asker to Obertshausen | 677.74 mi (1,090.72 km) |
| Asker to Oberursel | 669.36 mi (1,077.24 km) |
| Asker to Ochsenfurt | 703.74 mi (1,132.56 km) |
| Asker to Ochsenhausen | 812.84 mi (1,308.14 km) |
| Asker to Ochtrup | 541.57 mi (871.58 km) |
| Asker to Odenthal | 621.60 mi (1,000.37 km) |
| Asker to Oelde | 559.74 mi (900.81 km) |
| Asker to Oelsnitz | 654.12 mi (1,052.71 km) |
| Asker to Oer-Erkenschwick | 579.20 mi (932.12 km) |
