| Rotterdam to Orzesze | 630.01 mi (1,013.90 km) |
| Rotterdam to Osowa | 602.89 mi (970.25 km) |
| Rotterdam to Ostroda | 656.24 mi (1,056.12 km) |
| Rotterdam to Ostroleka | 720.63 mi (1,159.74 km) |
| Rotterdam to Ostrow Mazowiecka | 734.94 mi (1,182.78 km) |
| Rotterdam to Ostrow Wielkopolski | 568.70 mi (915.23 km) |
| Rotterdam to Ostrowiec Swietokrzyski | 729.59 mi (1,174.17 km) |
| Rotterdam to Ostrzeszow | 575.89 mi (926.80 km) |
| Rotterdam to Oswiecim | 652.25 mi (1,049.69 km) |
| Rotterdam to Otwock | 711.50 mi (1,145.06 km) |
| Rotterdam to Ozarow Mazowiecki | 691.19 mi (1,112.36 km) |
| Rotterdam to Ozimek | 597.75 mi (961.99 km) |
| Rotterdam to Ozorkow | 628.60 mi (1,011.63 km) |
| Rotterdam to Pabianice | 635.32 mi (1,022.46 km) |
| Rotterdam to Parczew | 783.36 mi (1,260.70 km) |
