| Assen to Marco de Canavezes | 1,066.22 mi (1,715.92 km) |
| Assen to Marinha Grande | 1,171.25 mi (1,884.94 km) |
| Assen to Massama | 1,238.80 mi (1,993.66 km) |
| Assen to Matosinhos | 1,082.83 mi (1,742.64 km) |
| Assen to Mealhada | 1,120.66 mi (1,803.53 km) |
| Assen to Melgaco | 1,017.71 mi (1,637.85 km) |
| Assen to Melres | 1,080.30 mi (1,738.57 km) |
| Assen to Mira | 1,126.18 mi (1,812.42 km) |
| Assen to Miranda do Corvo | 1,133.57 mi (1,824.30 km) |
| Assen to Mirandela | 1,020.52 mi (1,642.36 km) |
| Assen to Mogadouro | 1,015.94 mi (1,635.00 km) |
| Assen to Moimenta da Beira | 1,062.03 mi (1,709.17 km) |
| Assen to Moita | 1,236.75 mi (1,990.35 km) |
| Assen to Moncao | 1,026.74 mi (1,652.38 km) |
| Assen to Montalegre | 1,019.46 mi (1,640.66 km) |
