| Gravesend to Oberkirch | 396.99 mi (638.89 km) |
| Gravesend to Obernburg am Main | 399.74 mi (643.31 km) |
| Gravesend to Obernkirchen | 377.48 mi (607.49 km) |
| Gravesend to Oberschleissheim | 544.76 mi (876.70 km) |
| Gravesend to Oberstdorf | 524.67 mi (844.37 km) |
| Gravesend to Obertraubling | 548.37 mi (882.52 km) |
| Gravesend to Obertshausen | 381.77 mi (614.40 km) |
| Gravesend to Oberursel | 368.14 mi (592.46 km) |
| Gravesend to Ochsenfurt | 443.06 mi (713.03 km) |
| Gravesend to Ochsenhausen | 486.33 mi (782.67 km) |
| Gravesend to Ochtrup | 295.96 mi (476.30 km) |
| Gravesend to Odenthal | 293.17 mi (471.82 km) |
| Gravesend to Oelde | 334.62 mi (538.52 km) |
| Gravesend to Oelsnitz | 518.07 mi (833.75 km) |
| Gravesend to Oer-Erkenschwick | 295.96 mi (476.30 km) |
