| Forest to Orzesze | 634.86 mi (1,021.71 km) |
| Forest to Osowa | 642.34 mi (1,033.75 km) |
| Forest to Ostroda | 689.34 mi (1,109.39 km) |
| Forest to Ostroleka | 748.79 mi (1,205.07 km) |
| Forest to Ostrow Mazowiecka | 761.28 mi (1,225.17 km) |
| Forest to Ostrow Wielkopolski | 585.72 mi (942.63 km) |
| Forest to Ostrowiec Swietokrzyski | 742.88 mi (1,195.54 km) |
| Forest to Ostrzeszow | 590.88 mi (950.92 km) |
| Forest to Oswiecim | 656.78 mi (1,056.99 km) |
| Forest to Otwock | 733.10 mi (1,179.81 km) |
| Forest to Ozarow Mazowiecki | 713.42 mi (1,148.14 km) |
| Forest to Ozimek | 606.41 mi (975.93 km) |
| Forest to Ozorkow | 648.68 mi (1,043.95 km) |
| Forest to Pabianice | 652.89 mi (1,050.73 km) |
| Forest to Parczew | 802.19 mi (1,290.99 km) |
