| Grabels to Obernburg am Main | 496.64 mi (799.26 km) |
| Grabels to Obernkirchen | 643.84 mi (1,036.16 km) |
| Grabels to Oberschleissheim | 489.72 mi (788.13 km) |
| Grabels to Oberstdorf | 407.00 mi (655.01 km) |
| Grabels to Obertraubling | 542.00 mi (872.27 km) |
| Grabels to Obertshausen | 502.90 mi (809.34 km) |
| Grabels to Oberursel | 505.62 mi (813.71 km) |
| Grabels to Ochsenfurt | 509.77 mi (820.40 km) |
| Grabels to Ochsenhausen | 425.06 mi (684.08 km) |
| Grabels to Ochtrup | 611.55 mi (984.19 km) |
| Grabels to Odenthal | 533.21 mi (858.11 km) |
| Grabels to Oelde | 600.27 mi (966.04 km) |
| Grabels to Oelsnitz | 610.69 mi (982.81 km) |
| Grabels to Oer-Erkenschwick | 575.03 mi (925.42 km) |
| Grabels to Oerlinghausen | 617.16 mi (993.22 km) |
