| Cities | Distance |
|---|---|
| Postojna to Opwijk | 582.74 mi (937.83 km) |
| Postojna to Ostend | 638.51 mi (1,027.58 km) |
| Postojna to Oud-Heverlee | 560.16 mi (901.48 km) |
| Postojna to Oud-Turnhout | 569.15 mi (915.95 km) |
| Postojna to Oudenaarde | 599.71 mi (965.14 km) |
| Postojna to Oudenburg | 634.00 mi (1,020.32 km) |
| Postojna to Oupeye | 520.63 mi (837.87 km) |
| Postojna to Overijse | 563.00 mi (906.06 km) |
| Postojna to Overpelt | 550.26 mi (885.55 km) |
| Postojna to Paal | 550.83 mi (886.48 km) |
| Postojna to Peer | 545.34 mi (877.63 km) |
| Postojna to Pepinster | 508.64 mi (818.58 km) |
| Postojna to Peruwelz | 588.59 mi (947.24 km) |
| Postojna to Perwez | 546.62 mi (879.70 km) |
| Postojna to Philippeville | 540.75 mi (870.26 km) |