| Grudziadz to Menen | 686.92 mi (1,105.49 km) |
| Grudziadz to Merchtem | 637.51 mi (1,025.98 km) |
| Grudziadz to Merelbeke | 656.27 mi (1,056.17 km) |
| Grudziadz to Merksem | 622.31 mi (1,001.51 km) |
| Grudziadz to Merksplas | 602.13 mi (969.03 km) |
| Grudziadz to Mettet | 638.32 mi (1,027.28 km) |
| Grudziadz to Meulebeke | 676.33 mi (1,088.44 km) |
| Grudziadz to Middelkerke | 689.74 mi (1,110.04 km) |
| Grudziadz to Mol | 596.35 mi (959.73 km) |
| Grudziadz to Mons | 662.79 mi (1,066.67 km) |
| Grudziadz to Montignies-le-Tilleul | 647.35 mi (1,041.81 km) |
| Grudziadz to Moorslede | 686.90 mi (1,105.46 km) |
| Grudziadz to Moortebeek | 636.13 mi (1,023.76 km) |
| Grudziadz to Morlanwelz-Mariemont | 651.43 mi (1,048.38 km) |
| Grudziadz to Mortsel | 623.10 mi (1,002.79 km) |
