| Porto to Menen | 870.20 mi (1,400.45 km) |
| Porto to Merchtem | 913.22 mi (1,469.68 km) |
| Porto to Merelbeke | 899.58 mi (1,447.73 km) |
| Porto to Merksem | 932.84 mi (1,501.26 km) |
| Porto to Merksplas | 952.13 mi (1,532.30 km) |
| Porto to Mettet | 897.63 mi (1,444.59 km) |
| Porto to Meulebeke | 882.84 mi (1,420.79 km) |
| Porto to Middelkerke | 880.59 mi (1,417.17 km) |
| Porto to Mol | 951.71 mi (1,531.62 km) |
| Porto to Mons | 879.98 mi (1,416.19 km) |
| Porto to Montignies-le-Tilleul | 891.27 mi (1,434.35 km) |
| Porto to Moorslede | 873.09 mi (1,405.10 km) |
| Porto to Moortebeek | 911.36 mi (1,466.69 km) |
| Porto to Morlanwelz-Mariemont | 889.30 mi (1,431.19 km) |
| Porto to Mortsel | 930.05 mi (1,496.77 km) |
