| Grumo Nevano to Oberkirch | 606.03 mi (975.31 km) |
| Grumo Nevano to Obernburg am Main | 663.35 mi (1,067.56 km) |
| Grumo Nevano to Obernkirchen | 819.77 mi (1,319.30 km) |
| Grumo Nevano to Oberschleissheim | 522.61 mi (841.06 km) |
| Grumo Nevano to Oberstdorf | 489.00 mi (786.96 km) |
| Grumo Nevano to Obertraubling | 564.35 mi (908.23 km) |
| Grumo Nevano to Obertshausen | 683.26 mi (1,099.60 km) |
| Grumo Nevano to Oberursel | 696.61 mi (1,121.08 km) |
| Grumo Nevano to Ochsenfurt | 635.66 mi (1,023.00 km) |
| Grumo Nevano to Ochsenhausen | 536.98 mi (864.18 km) |
| Grumo Nevano to Ochtrup | 847.30 mi (1,363.59 km) |
| Grumo Nevano to Odenthal | 776.82 mi (1,250.18 km) |
| Grumo Nevano to Oelde | 806.87 mi (1,298.52 km) |
| Grumo Nevano to Oelsnitz | 662.96 mi (1,066.93 km) |
| Grumo Nevano to Oer-Erkenschwick | 811.30 mi (1,305.66 km) |
