| Hallstahammar to Oberkirch | 832.84 mi (1,340.32 km) |
| Hallstahammar to Obernburg am Main | 731.65 mi (1,177.48 km) |
| Hallstahammar to Obernkirchen | 577.26 mi (929.00 km) |
| Hallstahammar to Oberschleissheim | 807.64 mi (1,299.77 km) |
| Hallstahammar to Oberstdorf | 877.51 mi (1,412.22 km) |
| Hallstahammar to Obertraubling | 753.74 mi (1,213.03 km) |
| Hallstahammar to Obertshausen | 721.78 mi (1,161.59 km) |
| Hallstahammar to Oberursel | 717.17 mi (1,154.18 km) |
| Hallstahammar to Ochsenfurt | 730.92 mi (1,176.31 km) |
| Hallstahammar to Ochsenhausen | 837.08 mi (1,347.16 km) |
| Hallstahammar to Ochtrup | 619.53 mi (997.04 km) |
| Hallstahammar to Odenthal | 691.86 mi (1,113.44 km) |
| Hallstahammar to Oelde | 622.33 mi (1,001.54 km) |
| Hallstahammar to Oelsnitz | 655.60 mi (1,055.09 km) |
| Hallstahammar to Oer-Erkenschwick | 652.04 mi (1,049.35 km) |
