| Tilbury to Mangualde | 843.97 mi (1,358.24 km) |
| Tilbury to Marco de Canavezes | 816.70 mi (1,314.35 km) |
| Tilbury to Marinha Grande | 923.72 mi (1,486.59 km) |
| Tilbury to Massama | 993.57 mi (1,599.00 km) |
| Tilbury to Matosinhos | 829.87 mi (1,335.55 km) |
| Tilbury to Mealhada | 873.20 mi (1,405.29 km) |
| Tilbury to Melgaco | 762.56 mi (1,227.21 km) |
| Tilbury to Melres | 829.77 mi (1,335.39 km) |
| Tilbury to Mira | 876.70 mi (1,410.91 km) |
| Tilbury to Miranda do Corvo | 888.24 mi (1,429.48 km) |
| Tilbury to Mirandela | 776.05 mi (1,248.93 km) |
| Tilbury to Mogadouro | 775.84 mi (1,248.59 km) |
| Tilbury to Moimenta da Beira | 817.18 mi (1,315.13 km) |
| Tilbury to Moita | 993.79 mi (1,599.36 km) |
| Tilbury to Moncao | 770.54 mi (1,240.07 km) |
