| Sint-Pieters-Leeuw to Obernburg am Main | 225.40 mi (362.75 km) |
| Sint-Pieters-Leeuw to Obernkirchen | 232.94 mi (374.87 km) |
| Sint-Pieters-Leeuw to Oberschleissheim | 371.73 mi (598.24 km) |
| Sint-Pieters-Leeuw to Oberstdorf | 358.59 mi (577.10 km) |
| Sint-Pieters-Leeuw to Obertraubling | 374.00 mi (601.89 km) |
| Sint-Pieters-Leeuw to Obertshausen | 207.70 mi (334.26 km) |
| Sint-Pieters-Leeuw to Oberursel | 194.33 mi (312.75 km) |
| Sint-Pieters-Leeuw to Ochsenfurt | 268.74 mi (432.50 km) |
| Sint-Pieters-Leeuw to Ochsenhausen | 317.12 mi (510.35 km) |
| Sint-Pieters-Leeuw to Ochtrup | 160.15 mi (257.74 km) |
| Sint-Pieters-Leeuw to Odenthal | 126.08 mi (202.90 km) |
| Sint-Pieters-Leeuw to Oelde | 183.38 mi (295.12 km) |
| Sint-Pieters-Leeuw to Oelsnitz | 347.95 mi (559.97 km) |
| Sint-Pieters-Leeuw to Oer-Erkenschwick | 142.78 mi (229.79 km) |
| Sint-Pieters-Leeuw to Oerlinghausen | 207.25 mi (333.54 km) |
