| North Druid Hills to Oberkirch | 4,615.46 mi (7,427.87 km) |
| North Druid Hills to Obernburg am Main | 4,619.70 mi (7,434.68 km) |
| North Druid Hills to Obernkirchen | 4,547.61 mi (7,318.67 km) |
| North Druid Hills to Oberschleissheim | 4,767.14 mi (7,671.97 km) |
| North Druid Hills to Oberstdorf | 4,740.93 mi (7,629.78 km) |
| North Druid Hills to Obertraubling | 4,768.34 mi (7,673.91 km) |
| North Druid Hills to Obertshausen | 4,600.60 mi (7,403.95 km) |
| North Druid Hills to Oberursel | 4,586.30 mi (7,380.94 km) |
| North Druid Hills to Ochsenfurt | 4,662.59 mi (7,503.71 km) |
| North Druid Hills to Ochsenhausen | 4,706.44 mi (7,574.29 km) |
| North Druid Hills to Ochtrup | 4,474.80 mi (7,201.50 km) |
| North Druid Hills to Odenthal | 4,504.30 mi (7,248.97 km) |
| North Druid Hills to Oelde | 4,522.51 mi (7,278.28 km) |
| North Druid Hills to Oelsnitz | 4,721.88 mi (7,599.13 km) |
| North Druid Hills to Oer-Erkenschwick | 4,492.68 mi (7,230.27 km) |
