| Shoeburyness to Mangualde | 857.93 mi (1,380.71 km) |
| Shoeburyness to Marco de Canavezes | 831.23 mi (1,337.74 km) |
| Shoeburyness to Marinha Grande | 938.15 mi (1,509.80 km) |
| Shoeburyness to Massama | 1,007.81 mi (1,621.91 km) |
| Shoeburyness to Matosinhos | 844.81 mi (1,359.58 km) |
| Shoeburyness to Mealhada | 887.57 mi (1,428.41 km) |
| Shoeburyness to Melgaco | 777.67 mi (1,251.54 km) |
| Shoeburyness to Melres | 844.43 mi (1,358.99 km) |
| Shoeburyness to Mira | 891.29 mi (1,434.39 km) |
| Shoeburyness to Miranda do Corvo | 902.39 mi (1,452.26 km) |
| Shoeburyness to Mirandela | 789.99 mi (1,271.36 km) |
| Shoeburyness to Mogadouro | 789.30 mi (1,270.26 km) |
| Shoeburyness to Moimenta da Beira | 831.21 mi (1,337.70 km) |
| Shoeburyness to Moita | 1,007.79 mi (1,621.89 km) |
| Shoeburyness to Moncao | 785.79 mi (1,264.60 km) |
