| Gnarrenburg to Obernburg am Main | 245.10 mi (394.45 km) |
| Gnarrenburg to Obernkirchen | 77.53 mi (124.77 km) |
| Gnarrenburg to Oberschleissheim | 372.03 mi (598.72 km) |
| Gnarrenburg to Oberstdorf | 416.73 mi (670.66 km) |
| Gnarrenburg to Obertraubling | 334.65 mi (538.57 km) |
| Gnarrenburg to Obertshausen | 229.49 mi (369.32 km) |
| Gnarrenburg to Oberursel | 220.69 mi (355.17 km) |
| Gnarrenburg to Ochsenfurt | 262.16 mi (421.90 km) |
| Gnarrenburg to Ochsenhausen | 369.48 mi (594.61 km) |
| Gnarrenburg to Ochtrup | 111.37 mi (179.23 km) |
| Gnarrenburg to Odenthal | 181.16 mi (291.55 km) |
| Gnarrenburg to Oelde | 113.14 mi (182.09 km) |
| Gnarrenburg to Oelsnitz | 245.44 mi (395.00 km) |
| Gnarrenburg to Oer-Erkenschwick | 141.28 mi (227.37 km) |
| Gnarrenburg to Oerlinghausen | 99.11 mi (159.50 km) |
