| Ramnicu Sarat to Oberkirch | 918.46 mi (1,478.11 km) |
| Ramnicu Sarat to Obernburg am Main | 887.07 mi (1,427.61 km) |
| Ramnicu Sarat to Obernkirchen | 941.02 mi (1,514.43 km) |
| Ramnicu Sarat to Oberschleissheim | 757.48 mi (1,219.05 km) |
| Ramnicu Sarat to Oberstdorf | 810.19 mi (1,303.88 km) |
| Ramnicu Sarat to Obertraubling | 740.61 mi (1,191.89 km) |
| Ramnicu Sarat to Obertshausen | 904.10 mi (1,455.00 km) |
| Ramnicu Sarat to Oberursel | 917.41 mi (1,476.42 km) |
| Ramnicu Sarat to Ochsenfurt | 843.83 mi (1,358.01 km) |
| Ramnicu Sarat to Ochsenhausen | 829.65 mi (1,335.20 km) |
| Ramnicu Sarat to Ochtrup | 1,015.37 mi (1,634.09 km) |
| Ramnicu Sarat to Odenthal | 993.93 mi (1,599.58 km) |
| Ramnicu Sarat to Oelde | 968.26 mi (1,558.26 km) |
| Ramnicu Sarat to Oelsnitz | 770.82 mi (1,240.52 km) |
| Ramnicu Sarat to Oer-Erkenschwick | 1,000.39 mi (1,609.98 km) |
