| Calafat to Opole | 517.82 mi (833.36 km) |
| Calafat to Orzesze | 469.49 mi (755.58 km) |
| Calafat to Osowa | 748.93 mi (1,205.29 km) |
| Calafat to Ostroda | 684.66 mi (1,101.86 km) |
| Calafat to Ostroleka | 630.62 mi (1,014.88 km) |
| Calafat to Ostrow Mazowiecka | 610.91 mi (983.17 km) |
| Calafat to Ostrow Wielkopolski | 580.39 mi (934.05 km) |
| Calafat to Ostrowiec Swietokrzyski | 485.48 mi (781.30 km) |
| Calafat to Ostrzeszow | 563.75 mi (907.27 km) |
| Calafat to Oswiecim | 453.56 mi (729.93 km) |
| Calafat to Otwock | 567.15 mi (912.74 km) |
| Calafat to Ozarow Mazowiecki | 577.28 mi (929.04 km) |
| Calafat to Ozimek | 512.43 mi (824.67 km) |
| Calafat to Ozorkow | 576.83 mi (928.31 km) |
| Calafat to Pabianice | 554.73 mi (892.74 km) |
