| Ruse to Obernburg am Main | 894.12 mi (1,438.94 km) |
| Ruse to Obernkirchen | 968.28 mi (1,558.30 km) |
| Ruse to Oberschleissheim | 753.30 mi (1,212.32 km) |
| Ruse to Oberstdorf | 795.39 mi (1,280.06 km) |
| Ruse to Obertraubling | 745.35 mi (1,199.53 km) |
| Ruse to Obertshausen | 912.59 mi (1,468.67 km) |
| Ruse to Oberursel | 926.63 mi (1,491.27 km) |
| Ruse to Ochsenfurt | 850.88 mi (1,369.36 km) |
| Ruse to Ochsenhausen | 821.18 mi (1,321.56 km) |
| Ruse to Ochtrup | 1,038.04 mi (1,670.56 km) |
| Ruse to Odenthal | 1,007.47 mi (1,621.37 km) |
| Ruse to Oelde | 990.03 mi (1,593.29 km) |
| Ruse to Oelsnitz | 790.29 mi (1,271.85 km) |
| Ruse to Oer-Erkenschwick | 1,018.92 mi (1,639.79 km) |
| Ruse to Oerlinghausen | 974.80 mi (1,568.79 km) |
