| Hammersmith to Mangualde | 833.61 mi (1,341.57 km) |
| Hammersmith to Marco de Canavezes | 805.36 mi (1,296.10 km) |
| Hammersmith to Marinha Grande | 912.53 mi (1,468.58 km) |
| Hammersmith to Massama | 982.67 mi (1,581.45 km) |
| Hammersmith to Matosinhos | 817.84 mi (1,316.19 km) |
| Hammersmith to Mealhada | 862.13 mi (1,387.46 km) |
| Hammersmith to Melgaco | 750.23 mi (1,207.38 km) |
| Hammersmith to Melres | 818.21 mi (1,316.79 km) |
| Hammersmith to Mira | 865.23 mi (1,392.46 km) |
| Hammersmith to Miranda do Corvo | 877.52 mi (1,412.23 km) |
| Hammersmith to Mirandela | 765.77 mi (1,232.39 km) |
| Hammersmith to Mogadouro | 766.35 mi (1,233.32 km) |
| Hammersmith to Moimenta da Beira | 806.72 mi (1,298.30 km) |
| Hammersmith to Moita | 983.29 mi (1,582.45 km) |
| Hammersmith to Moncao | 757.98 mi (1,219.85 km) |
