| Morfelden-Walldorf to Obernburg am Main | 27.18 mi (43.74 km) |
| Morfelden-Walldorf to Obernkirchen | 158.30 mi (254.75 km) |
| Morfelden-Walldorf to Oberschleissheim | 181.13 mi (291.50 km) |
| Morfelden-Walldorf to Oberstdorf | 194.95 mi (313.74 km) |
| Morfelden-Walldorf to Obertraubling | 175.99 mi (283.24 km) |
| Morfelden-Walldorf to Obertshausen | 12.01 mi (19.34 km) |
| Morfelden-Walldorf to Oberursel | 14.05 mi (22.61 km) |
| Morfelden-Walldorf to Ochsenfurt | 70.40 mi (113.30 km) |
| Morfelden-Walldorf to Ochsenhausen | 146.84 mi (236.31 km) |
| Morfelden-Walldorf to Ochtrup | 163.93 mi (263.82 km) |
| Morfelden-Walldorf to Odenthal | 96.17 mi (154.76 km) |
| Morfelden-Walldorf to Oelde | 128.07 mi (206.10 km) |
| Morfelden-Walldorf to Oelsnitz | 161.03 mi (259.16 km) |
| Morfelden-Walldorf to Oer-Erkenschwick | 127.50 mi (205.19 km) |
| Morfelden-Walldorf to Oerlinghausen | 135.93 mi (218.76 km) |
