| Diemen to Marco de Canavezes | 986.27 mi (1,587.25 km) |
| Diemen to Marinha Grande | 1,091.61 mi (1,756.77 km) |
| Diemen to Massama | 1,159.49 mi (1,866.02 km) |
| Diemen to Matosinhos | 1,002.56 mi (1,613.46 km) |
| Diemen to Mealhada | 1,040.99 mi (1,675.31 km) |
| Diemen to Melgaco | 937.19 mi (1,508.27 km) |
| Diemen to Melres | 1,000.26 mi (1,609.76 km) |
| Diemen to Mira | 1,046.29 mi (1,683.85 km) |
| Diemen to Miranda do Corvo | 1,054.14 mi (1,696.48 km) |
| Diemen to Mirandela | 941.05 mi (1,514.48 km) |
| Diemen to Mogadouro | 936.98 mi (1,507.92 km) |
| Diemen to Moimenta da Beira | 982.58 mi (1,581.30 km) |
| Diemen to Moita | 1,157.70 mi (1,863.14 km) |
| Diemen to Moncao | 946.14 mi (1,522.67 km) |
| Diemen to Montalegre | 939.36 mi (1,511.76 km) |
