| Erfelek to Oberkirch | 1,376.13 mi (2,214.67 km) |
| Erfelek to Obernburg am Main | 1,347.80 mi (2,169.07 km) |
| Erfelek to Obernkirchen | 1,398.92 mi (2,251.34 km) |
| Erfelek to Oberschleissheim | 1,215.52 mi (1,956.19 km) |
| Erfelek to Oberstdorf | 1,263.67 mi (2,033.69 km) |
| Erfelek to Obertraubling | 1,200.85 mi (1,932.58 km) |
| Erfelek to Obertshausen | 1,364.94 mi (2,196.66 km) |
| Erfelek to Oberursel | 1,378.29 mi (2,218.15 km) |
| Erfelek to Ochsenfurt | 1,304.52 mi (2,099.42 km) |
| Erfelek to Ochsenhausen | 1,286.26 mi (2,070.04 km) |
| Erfelek to Ochtrup | 1,474.56 mi (2,373.07 km) |
| Erfelek to Odenthal | 1,454.75 mi (2,341.20 km) |
| Erfelek to Oelde | 1,427.79 mi (2,297.81 km) |
| Erfelek to Oelsnitz | 1,231.25 mi (1,981.51 km) |
| Erfelek to Oer-Erkenschwick | 1,460.57 mi (2,350.57 km) |
