| Grevenmacher to Marco de Canavezes | 916.58 mi (1,475.09 km) |
| Grevenmacher to Marinha Grande | 1,016.52 mi (1,635.93 km) |
| Grevenmacher to Massama | 1,080.01 mi (1,738.11 km) |
| Grevenmacher to Matosinhos | 937.05 mi (1,508.03 km) |
| Grevenmacher to Mealhada | 967.08 mi (1,556.37 km) |
| Grevenmacher to Melgaco | 876.84 mi (1,411.14 km) |
| Grevenmacher to Melres | 931.50 mi (1,499.10 km) |
| Grevenmacher to Mira | 974.89 mi (1,568.93 km) |
| Grevenmacher to Miranda do Corvo | 977.22 mi (1,572.68 km) |
| Grevenmacher to Mirandela | 866.33 mi (1,394.22 km) |
| Grevenmacher to Mogadouro | 857.17 mi (1,379.48 km) |
| Grevenmacher to Moimenta da Beira | 907.02 mi (1,459.71 km) |
| Grevenmacher to Moita | 1,075.49 mi (1,730.84 km) |
| Grevenmacher to Moncao | 887.02 mi (1,427.51 km) |
| Grevenmacher to Montalegre | 872.53 mi (1,404.20 km) |
