| Ostrow Mazowiecka to Lubbeek | 738.34 mi (1,188.25 km) |
| Ostrow Mazowiecka to Lummen | 721.37 mi (1,160.93 km) |
| Ostrow Mazowiecka to Maaseik | 694.65 mi (1,117.94 km) |
| Ostrow Mazowiecka to Machelen | 754.65 mi (1,214.49 km) |
| Ostrow Mazowiecka to Maldegem | 791.03 mi (1,273.04 km) |
| Ostrow Mazowiecka to Malmedy | 699.57 mi (1,125.85 km) |
| Ostrow Mazowiecka to Manage | 771.76 mi (1,242.03 km) |
| Ostrow Mazowiecka to Marche-en-Famenne | 732.63 mi (1,179.06 km) |
| Ostrow Mazowiecka to Mariakerke | 783.25 mi (1,260.52 km) |
| Ostrow Mazowiecka to Mechelen | 750.52 mi (1,207.84 km) |
| Ostrow Mazowiecka to Mechelen-aan-de-Maas | 700.15 mi (1,126.79 km) |
| Ostrow Mazowiecka to Meerhout | 723.36 mi (1,164.14 km) |
| Ostrow Mazowiecka to Meise | 758.51 mi (1,220.70 km) |
| Ostrow Mazowiecka to Melle | 779.46 mi (1,254.43 km) |
| Ostrow Mazowiecka to Melsele | 755.23 mi (1,215.42 km) |
