| Ostrow Mazowiecka to Menen | 811.83 mi (1,306.52 km) |
| Ostrow Mazowiecka to Merchtem | 762.02 mi (1,226.36 km) |
| Ostrow Mazowiecka to Merelbeke | 781.55 mi (1,257.79 km) |
| Ostrow Mazowiecka to Merksem | 748.15 mi (1,204.04 km) |
| Ostrow Mazowiecka to Merksplas | 728.21 mi (1,171.93 km) |
| Ostrow Mazowiecka to Mettet | 758.26 mi (1,220.30 km) |
| Ostrow Mazowiecka to Meulebeke | 801.86 mi (1,290.48 km) |
| Ostrow Mazowiecka to Middelkerke | 816.96 mi (1,314.77 km) |
| Ostrow Mazowiecka to Mol | 721.04 mi (1,160.40 km) |
| Ostrow Mazowiecka to Mons | 784.67 mi (1,262.80 km) |
| Ostrow Mazowiecka to Montignies-le-Tilleul | 768.15 mi (1,236.21 km) |
| Ostrow Mazowiecka to Moorslede | 812.38 mi (1,307.41 km) |
| Ostrow Mazowiecka to Moortebeek | 759.86 mi (1,222.87 km) |
| Ostrow Mazowiecka to Morlanwelz-Mariemont | 772.88 mi (1,243.83 km) |
| Ostrow Mazowiecka to Mortsel | 748.48 mi (1,204.56 km) |
