| Grobenzell to Obernburg am Main | 151.67 mi (244.08 km) |
| Grobenzell to Obernkirchen | 297.99 mi (479.56 km) |
| Grobenzell to Oberschleissheim | 9.83 mi (15.82 km) |
| Grobenzell to Oberstdorf | 74.35 mi (119.66 km) |
| Grobenzell to Obertraubling | 64.32 mi (103.52 km) |
| Grobenzell to Obertshausen | 172.47 mi (277.56 km) |
| Grobenzell to Oberursel | 187.11 mi (301.13 km) |
| Grobenzell to Ochsenfurt | 116.27 mi (187.12 km) |
| Grobenzell to Ochsenhausen | 66.00 mi (106.22 km) |
| Grobenzell to Ochtrup | 332.61 mi (535.28 km) |
| Grobenzell to Odenthal | 272.89 mi (439.18 km) |
| Grobenzell to Oelde | 288.75 mi (464.70 km) |
| Grobenzell to Oelsnitz | 157.34 mi (253.21 km) |
| Grobenzell to Oer-Erkenschwick | 300.05 mi (482.88 km) |
| Grobenzell to Oerlinghausen | 286.41 mi (460.94 km) |
