| Backi Petrovac to Opwijk | 806.65 mi (1,298.18 km) |
| Backi Petrovac to Ostend | 864.20 mi (1,390.80 km) |
| Backi Petrovac to Oud-Heverlee | 783.66 mi (1,261.18 km) |
| Backi Petrovac to Oud-Turnhout | 784.99 mi (1,263.32 km) |
| Backi Petrovac to Oudenaarde | 827.23 mi (1,331.30 km) |
| Backi Petrovac to Oudenburg | 859.88 mi (1,383.85 km) |
| Backi Petrovac to Oupeye | 741.13 mi (1,192.74 km) |
| Backi Petrovac to Overijse | 787.69 mi (1,267.67 km) |
| Backi Petrovac to Overpelt | 765.12 mi (1,231.35 km) |
| Backi Petrovac to Paal | 769.33 mi (1,238.12 km) |
| Backi Petrovac to Peer | 761.13 mi (1,224.92 km) |
| Backi Petrovac to Pepinster | 730.17 mi (1,175.10 km) |
| Backi Petrovac to Peruwelz | 819.92 mi (1,319.53 km) |
| Backi Petrovac to Perwez | 772.10 mi (1,242.57 km) |
| Backi Petrovac to Philippeville | 772.43 mi (1,243.10 km) |
