| Sint-Martens-Lennik to Obernburg am Main | 229.92 mi (370.02 km) |
| Sint-Martens-Lennik to Obernkirchen | 236.27 mi (380.24 km) |
| Sint-Martens-Lennik to Oberschleissheim | 376.17 mi (605.39 km) |
| Sint-Martens-Lennik to Oberstdorf | 362.74 mi (583.78 km) |
| Sint-Martens-Lennik to Obertraubling | 378.51 mi (609.16 km) |
| Sint-Martens-Lennik to Obertshausen | 212.21 mi (341.52 km) |
| Sint-Martens-Lennik to Oberursel | 198.84 mi (320.00 km) |
| Sint-Martens-Lennik to Ochsenfurt | 273.26 mi (439.77 km) |
| Sint-Martens-Lennik to Ochsenhausen | 321.39 mi (517.23 km) |
| Sint-Martens-Lennik to Ochtrup | 162.86 mi (262.09 km) |
| Sint-Martens-Lennik to Odenthal | 130.22 mi (209.57 km) |
| Sint-Martens-Lennik to Oelde | 186.88 mi (300.75 km) |
| Sint-Martens-Lennik to Oelsnitz | 352.34 mi (567.03 km) |
| Sint-Martens-Lennik to Oer-Erkenschwick | 146.24 mi (235.36 km) |
| Sint-Martens-Lennik to Oerlinghausen | 210.74 mi (339.16 km) |
