| Grumo Appula to Oberkirch | 668.70 mi (1,076.16 km) |
| Grumo Appula to Obernburg am Main | 710.49 mi (1,143.42 km) |
| Grumo Appula to Obernkirchen | 855.34 mi (1,376.54 km) |
| Grumo Appula to Oberschleissheim | 559.57 mi (900.55 km) |
| Grumo Appula to Oberstdorf | 543.84 mi (875.23 km) |
| Grumo Appula to Obertraubling | 591.94 mi (952.63 km) |
| Grumo Appula to Obertshausen | 731.13 mi (1,176.65 km) |
| Grumo Appula to Oberursel | 745.34 mi (1,199.51 km) |
| Grumo Appula to Ochsenfurt | 677.32 mi (1,090.04 km) |
| Grumo Appula to Ochsenhausen | 589.56 mi (948.81 km) |
| Grumo Appula to Ochtrup | 893.48 mi (1,437.91 km) |
| Grumo Appula to Odenthal | 829.35 mi (1,334.70 km) |
| Grumo Appula to Oelde | 849.74 mi (1,367.53 km) |
| Grumo Appula to Oelsnitz | 684.97 mi (1,102.36 km) |
| Grumo Appula to Oer-Erkenschwick | 859.92 mi (1,383.91 km) |
