| Grootegast to Oberkirch | 332.94 mi (535.82 km) |
| Grootegast to Obernburg am Main | 263.63 mi (424.26 km) |
| Grootegast to Obernkirchen | 135.52 mi (218.10 km) |
| Grootegast to Oberschleissheim | 413.45 mi (665.38 km) |
| Grootegast to Oberstdorf | 438.08 mi (705.03 km) |
| Grootegast to Obertraubling | 388.91 mi (625.90 km) |
| Grootegast to Obertshausen | 243.53 mi (391.92 km) |
| Grootegast to Oberursel | 230.17 mi (370.42 km) |
| Grootegast to Ochsenfurt | 295.35 mi (475.33 km) |
| Grootegast to Ochsenhausen | 389.91 mi (627.50 km) |
| Grootegast to Ochtrup | 79.51 mi (127.96 km) |
| Grootegast to Odenthal | 154.94 mi (249.36 km) |
| Grootegast to Oelde | 123.66 mi (199.01 km) |
| Grootegast to Oelsnitz | 316.97 mi (510.11 km) |
| Grootegast to Oer-Erkenschwick | 116.17 mi (186.96 km) |
