| Portogruaro to Menen | 564.26 mi (908.09 km) |
| Portogruaro to Merchtem | 532.33 mi (856.71 km) |
| Portogruaro to Merelbeke | 550.28 mi (885.60 km) |
| Portogruaro to Merksem | 537.72 mi (865.37 km) |
| Portogruaro to Merksplas | 529.93 mi (852.84 km) |
| Portogruaro to Mettet | 490.25 mi (788.98 km) |
| Portogruaro to Meulebeke | 564.43 mi (908.36 km) |
| Portogruaro to Middelkerke | 590.39 mi (950.13 km) |
| Portogruaro to Mol | 513.37 mi (826.19 km) |
| Portogruaro to Mons | 520.82 mi (838.17 km) |
| Portogruaro to Montignies-le-Tilleul | 502.60 mi (808.85 km) |
| Portogruaro to Moorslede | 570.08 mi (917.46 km) |
| Portogruaro to Moortebeek | 523.91 mi (843.15 km) |
| Portogruaro to Morlanwelz-Mariemont | 510.65 mi (821.81 km) |
| Portogruaro to Mortsel | 533.43 mi (858.48 km) |
