| Grumo Nevano to Orzesze | 672.44 mi (1,082.18 km) |
| Grumo Nevano to Osowa | 952.19 mi (1,532.41 km) |
| Grumo Nevano to Ostroda | 920.87 mi (1,482.00 km) |
| Grumo Nevano to Ostroleka | 905.03 mi (1,456.50 km) |
| Grumo Nevano to Ostrow Mazowiecka | 894.49 mi (1,439.54 km) |
| Grumo Nevano to Ostrow Wielkopolski | 759.32 mi (1,222.01 km) |
| Grumo Nevano to Ostrowiec Swietokrzyski | 770.43 mi (1,239.88 km) |
| Grumo Nevano to Ostrzeszow | 745.02 mi (1,199.00 km) |
| Grumo Nevano to Oswiecim | 672.93 mi (1,082.97 km) |
| Grumo Nevano to Otwock | 840.36 mi (1,352.42 km) |
| Grumo Nevano to Ozarow Mazowiecki | 838.25 mi (1,349.03 km) |
| Grumo Nevano to Ozimek | 699.02 mi (1,124.96 km) |
| Grumo Nevano to Ozorkow | 798.37 mi (1,284.86 km) |
| Grumo Nevano to Pabianice | 779.21 mi (1,254.02 km) |
| Grumo Nevano to Parczew | 844.35 mi (1,358.85 km) |
