| Portimao to Menen | 1,104.64 mi (1,777.74 km) |
| Portimao to Merchtem | 1,143.25 mi (1,839.89 km) |
| Portimao to Merelbeke | 1,132.25 mi (1,822.18 km) |
| Portimao to Merksem | 1,163.83 mi (1,873.00 km) |
| Portimao to Merksplas | 1,181.97 mi (1,902.20 km) |
| Portimao to Mettet | 1,120.49 mi (1,803.26 km) |
| Portimao to Meulebeke | 1,117.49 mi (1,798.42 km) |
| Portimao to Middelkerke | 1,119.10 mi (1,801.02 km) |
| Portimao to Mol | 1,179.04 mi (1,897.48 km) |
| Portimao to Mons | 1,107.58 mi (1,782.48 km) |
| Portimao to Montignies-le-Tilleul | 1,116.08 mi (1,796.16 km) |
| Portimao to Moorslede | 1,108.48 mi (1,783.92 km) |
| Portimao to Moortebeek | 1,140.05 mi (1,834.73 km) |
| Portimao to Morlanwelz-Mariemont | 1,115.42 mi (1,795.10 km) |
| Portimao to Mortsel | 1,160.38 mi (1,867.45 km) |
