| Castelginest to Obernburg am Main | 559.26 mi (900.05 km) |
| Castelginest to Obernkirchen | 689.90 mi (1,110.29 km) |
| Castelginest to Oberschleissheim | 578.86 mi (931.59 km) |
| Castelginest to Oberstdorf | 498.68 mi (802.54 km) |
| Castelginest to Obertraubling | 627.51 mi (1,009.87 km) |
| Castelginest to Obertshausen | 561.61 mi (903.82 km) |
| Castelginest to Oberursel | 561.45 mi (903.56 km) |
| Castelginest to Ochsenfurt | 579.74 mi (933.00 km) |
| Castelginest to Ochsenhausen | 508.69 mi (818.66 km) |
| Castelginest to Ochtrup | 645.16 mi (1,038.29 km) |
| Castelginest to Odenthal | 572.24 mi (920.94 km) |
| Castelginest to Oelde | 642.49 mi (1,033.99 km) |
| Castelginest to Oelsnitz | 685.11 mi (1,102.58 km) |
| Castelginest to Oer-Erkenschwick | 611.82 mi (984.62 km) |
| Castelginest to Oerlinghausen | 662.07 mi (1,065.50 km) |
