| Lake in the Hills to Oberkirch | 4,378.07 mi (7,045.83 km) |
| Lake in the Hills to Obernburg am Main | 4,366.18 mi (7,026.68 km) |
| Lake in the Hills to Obernkirchen | 4,271.37 mi (6,874.11 km) |
| Lake in the Hills to Oberschleissheim | 4,519.43 mi (7,273.32 km) |
| Lake in the Hills to Oberstdorf | 4,505.83 mi (7,251.44 km) |
| Lake in the Hills to Obertraubling | 4,511.90 mi (7,261.20 km) |
| Lake in the Hills to Obertshausen | 4,346.02 mi (6,994.24 km) |
| Lake in the Hills to Oberursel | 4,331.32 mi (6,970.59 km) |
| Lake in the Hills to Ochsenfurt | 4,407.56 mi (7,093.29 km) |
| Lake in the Hills to Ochsenhausen | 4,466.48 mi (7,188.11 km) |
| Lake in the Hills to Ochtrup | 4,205.24 mi (6,767.68 km) |
| Lake in the Hills to Odenthal | 4,246.29 mi (6,833.74 km) |
| Lake in the Hills to Oelde | 4,253.47 mi (6,845.31 km) |
| Lake in the Hills to Oelsnitz | 4,452.37 mi (7,165.40 km) |
| Lake in the Hills to Oer-Erkenschwick | 4,228.36 mi (6,804.89 km) |
