| Sint-Pieters-Leeuw to Nowy Sacz | 730.22 mi (1,175.18 km) |
| Sint-Pieters-Leeuw to Nowy Targ | 702.94 mi (1,131.28 km) |
| Sint-Pieters-Leeuw to Nowy Tomysl | 520.80 mi (838.15 km) |
| Sint-Pieters-Leeuw to Nysa | 573.12 mi (922.36 km) |
| Sint-Pieters-Leeuw to Oborniki | 552.40 mi (889.01 km) |
| Sint-Pieters-Leeuw to Oborniki Slaskie | 550.10 mi (885.30 km) |
| Sint-Pieters-Leeuw to Olawa | 568.52 mi (914.95 km) |
| Sint-Pieters-Leeuw to Olecko | 798.76 mi (1,285.48 km) |
| Sint-Pieters-Leeuw to Olesnica | 571.13 mi (919.14 km) |
| Sint-Pieters-Leeuw to Olesno | 617.34 mi (993.52 km) |
| Sint-Pieters-Leeuw to Olkusz | 672.30 mi (1,081.97 km) |
| Sint-Pieters-Leeuw to Olsztyn | 714.72 mi (1,150.23 km) |
| Sint-Pieters-Leeuw to Opalenica | 532.48 mi (856.95 km) |
| Sint-Pieters-Leeuw to Opoczno | 695.92 mi (1,119.98 km) |
| Sint-Pieters-Leeuw to Opole | 597.69 mi (961.90 km) |
