| Postojna to Oerlinghausen | 496.17 mi (798.50 km) |
| Postojna to Oestrich-Winkel | 409.69 mi (659.33 km) |
| Postojna to Offenburg | 348.76 mi (561.27 km) |
| Postojna to Oftersheim | 361.11 mi (581.15 km) |
| Postojna to Ohrdruf | 383.88 mi (617.80 km) |
| Postojna to Ohringen | 322.99 mi (519.81 km) |
| Postojna to Olbernhau | 340.34 mi (547.72 km) |
| Postojna to Olching | 216.06 mi (347.71 km) |
| Postojna to Oldenburg | 575.51 mi (926.20 km) |
| Postojna to Oldenburg in Holstein | 607.04 mi (976.94 km) |
| Postojna to Olfen | 514.62 mi (828.20 km) |
| Postojna to Olpe | 465.25 mi (748.75 km) |
| Postojna to Olsberg | 465.50 mi (749.15 km) |
| Postojna to Oranienburg | 484.16 mi (779.18 km) |
| Postojna to Ortenberg | 395.85 mi (637.07 km) |
