| Neder-Over-Heembeek to Orzesze | 632.18 mi (1,017.40 km) |
| Neder-Over-Heembeek to Osowa | 637.26 mi (1,025.57 km) |
| Neder-Over-Heembeek to Ostroda | 684.67 mi (1,101.87 km) |
| Neder-Over-Heembeek to Ostroleka | 744.47 mi (1,198.10 km) |
| Neder-Over-Heembeek to Ostrow Mazowiecka | 757.08 mi (1,218.41 km) |
| Neder-Over-Heembeek to Ostrow Wielkopolski | 582.10 mi (936.81 km) |
| Neder-Over-Heembeek to Ostrowiec Swietokrzyski | 739.60 mi (1,190.28 km) |
| Neder-Over-Heembeek to Ostrzeszow | 587.41 mi (945.34 km) |
| Neder-Over-Heembeek to Oswiecim | 654.14 mi (1,052.74 km) |
| Neder-Over-Heembeek to Otwock | 729.22 mi (1,173.56 km) |
| Neder-Over-Heembeek to Ozarow Mazowiecki | 709.49 mi (1,141.81 km) |
| Neder-Over-Heembeek to Ozimek | 603.43 mi (971.12 km) |
| Neder-Over-Heembeek to Ozorkow | 644.87 mi (1,037.82 km) |
| Neder-Over-Heembeek to Pabianice | 649.27 mi (1,044.90 km) |
| Neder-Over-Heembeek to Parczew | 798.53 mi (1,285.11 km) |
