| Merksplas to Obernburg am Main | 215.05 mi (346.09 km) |
| Merksplas to Obernkirchen | 191.89 mi (308.81 km) |
| Merksplas to Oberschleissheim | 368.03 mi (592.29 km) |
| Merksplas to Oberstdorf | 365.87 mi (588.81 km) |
| Merksplas to Obertraubling | 362.97 mi (584.14 km) |
| Merksplas to Obertshausen | 195.36 mi (314.40 km) |
| Merksplas to Oberursel | 180.88 mi (291.10 km) |
| Merksplas to Ochsenfurt | 257.36 mi (414.19 km) |
| Merksplas to Ochsenhausen | 321.32 mi (517.11 km) |
| Merksplas to Ochtrup | 114.98 mi (185.05 km) |
| Merksplas to Odenthal | 100.09 mi (161.09 km) |
| Merksplas to Oelde | 144.54 mi (232.61 km) |
| Merksplas to Oelsnitz | 324.71 mi (522.57 km) |
| Merksplas to Oer-Erkenschwick | 104.28 mi (167.82 km) |
| Merksplas to Oerlinghausen | 168.02 mi (270.40 km) |
