| Barlad to Oberkirch | 927.51 mi (1,492.68 km) |
| Barlad to Obernburg am Main | 889.23 mi (1,431.07 km) |
| Barlad to Obernkirchen | 931.68 mi (1,499.40 km) |
| Barlad to Oberschleissheim | 766.79 mi (1,234.04 km) |
| Barlad to Oberstdorf | 824.57 mi (1,327.01 km) |
| Barlad to Obertraubling | 745.34 mi (1,199.51 km) |
| Barlad to Obertshausen | 905.33 mi (1,456.99 km) |
| Barlad to Oberursel | 918.15 mi (1,477.62 km) |
| Barlad to Ochsenfurt | 846.32 mi (1,362.03 km) |
| Barlad to Ochsenhausen | 840.55 mi (1,352.73 km) |
| Barlad to Ochtrup | 1,008.12 mi (1,622.42 km) |
| Barlad to Odenthal | 991.82 mi (1,596.17 km) |
| Barlad to Oelde | 961.79 mi (1,547.85 km) |
| Barlad to Oelsnitz | 767.21 mi (1,234.71 km) |
| Barlad to Oer-Erkenschwick | 995.51 mi (1,602.11 km) |
