| Backi Petrovac to Oberkirch | 584.68 mi (940.96 km) |
| Backi Petrovac to Obernburg am Main | 576.13 mi (927.18 km) |
| Backi Petrovac to Obernkirchen | 673.09 mi (1,083.24 km) |
| Backi Petrovac to Oberschleissheim | 428.53 mi (689.65 km) |
| Backi Petrovac to Oberstdorf | 465.54 mi (749.21 km) |
| Backi Petrovac to Obertraubling | 428.29 mi (689.27 km) |
| Backi Petrovac to Obertshausen | 595.67 mi (958.63 km) |
| Backi Petrovac to Oberursel | 610.17 mi (981.98 km) |
| Backi Petrovac to Ochsenfurt | 533.67 mi (858.86 km) |
| Backi Petrovac to Ochsenhausen | 493.32 mi (793.92 km) |
| Backi Petrovac to Ochtrup | 734.76 mi (1,182.48 km) |
| Backi Petrovac to Odenthal | 694.06 mi (1,116.98 km) |
| Backi Petrovac to Oelde | 686.61 mi (1,104.99 km) |
| Backi Petrovac to Oelsnitz | 489.83 mi (788.31 km) |
| Backi Petrovac to Oer-Erkenschwick | 710.87 mi (1,144.04 km) |
