| Petrosani to Opole | 441.28 mi (710.17 km) |
| Petrosani to Orzesze | 391.28 mi (629.70 km) |
| Petrosani to Osowa | 659.55 mi (1,061.45 km) |
| Petrosani to Ostroda | 592.46 mi (953.47 km) |
| Petrosani to Ostroleka | 535.07 mi (861.11 km) |
| Petrosani to Ostrow Mazowiecka | 514.75 mi (828.41 km) |
| Petrosani to Ostrow Wielkopolski | 500.02 mi (804.71 km) |
| Petrosani to Ostrowiec Swietokrzyski | 392.12 mi (631.05 km) |
| Petrosani to Ostrzeszow | 483.79 mi (778.59 km) |
| Petrosani to Oswiecim | 373.22 mi (600.64 km) |
| Petrosani to Otwock | 473.01 mi (761.24 km) |
| Petrosani to Ozarow Mazowiecki | 484.42 mi (779.60 km) |
| Petrosani to Ozimek | 434.44 mi (699.16 km) |
| Petrosani to Ozorkow | 489.59 mi (787.92 km) |
| Petrosani to Pabianice | 467.88 mi (752.98 km) |
