| Koekelberg to Obernburg am Main | 223.47 mi (359.64 km) |
| Koekelberg to Obernkirchen | 227.05 mi (365.40 km) |
| Koekelberg to Oberschleissheim | 370.96 mi (597.01 km) |
| Koekelberg to Oberstdorf | 359.37 mi (578.35 km) |
| Koekelberg to Obertraubling | 372.21 mi (599.02 km) |
| Koekelberg to Obertshausen | 205.45 mi (330.63 km) |
| Koekelberg to Oberursel | 191.89 mi (308.81 km) |
| Koekelberg to Ochsenfurt | 266.77 mi (429.32 km) |
| Koekelberg to Ochsenhausen | 317.40 mi (510.81 km) |
| Koekelberg to Ochtrup | 153.72 mi (247.38 km) |
| Koekelberg to Odenthal | 121.70 mi (195.85 km) |
| Koekelberg to Oelde | 177.70 mi (285.98 km) |
| Koekelberg to Oelsnitz | 344.48 mi (554.38 km) |
| Koekelberg to Oer-Erkenschwick | 137.06 mi (220.57 km) |
| Koekelberg to Oerlinghausen | 201.56 mi (324.38 km) |
