| Helleland to Oberkirch | 722.04 mi (1,162.00 km) |
| Helleland to Obernburg am Main | 640.10 mi (1,030.14 km) |
| Helleland to Obernkirchen | 476.34 mi (766.60 km) |
| Helleland to Oberschleissheim | 772.56 mi (1,243.31 km) |
| Helleland to Oberstdorf | 814.94 mi (1,311.53 km) |
| Helleland to Obertraubling | 733.28 mi (1,180.09 km) |
| Helleland to Obertshausen | 622.18 mi (1,001.30 km) |
| Helleland to Oberursel | 610.92 mi (983.18 km) |
| Helleland to Ochsenfurt | 661.73 mi (1,064.94 km) |
| Helleland to Ochsenhausen | 767.03 mi (1,234.41 km) |
| Helleland to Ochtrup | 465.47 mi (749.09 km) |
| Helleland to Odenthal | 545.73 mi (878.27 km) |
| Helleland to Oelde | 496.78 mi (799.50 km) |
| Helleland to Oelsnitz | 638.87 mi (1,028.17 km) |
| Helleland to Oer-Erkenschwick | 504.44 mi (811.82 km) |
