| Salt to Opole | 936.44 mi (1,507.06 km) |
| Salt to Orzesze | 947.82 mi (1,525.38 km) |
| Salt to Osowa | 1,118.08 mi (1,799.37 km) |
| Salt to Ostroda | 1,130.46 mi (1,819.30 km) |
| Salt to Ostroleka | 1,157.67 mi (1,863.09 km) |
| Salt to Ostrow Mazowiecka | 1,159.19 mi (1,865.54 km) |
| Salt to Ostrow Wielkopolski | 972.05 mi (1,564.36 km) |
| Salt to Ostrowiec Swietokrzyski | 1,075.80 mi (1,731.33 km) |
| Salt to Ostrzeszow | 966.38 mi (1,555.23 km) |
| Salt to Oswiecim | 962.13 mi (1,548.39 km) |
| Salt to Otwock | 1,111.50 mi (1,788.79 km) |
| Salt to Ozarow Mazowiecki | 1,098.49 mi (1,767.85 km) |
| Salt to Ozimek | 946.88 mi (1,523.86 km) |
| Salt to Ozorkow | 1,035.49 mi (1,666.47 km) |
| Salt to Pabianice | 1,026.55 mi (1,652.07 km) |
