| Machelen to Marco de Canavezes | 900.86 mi (1,449.80 km) |
| Machelen to Marinha Grande | 1,004.97 mi (1,617.34 km) |
| Machelen to Massama | 1,071.78 mi (1,724.86 km) |
| Machelen to Matosinhos | 918.48 mi (1,478.16 km) |
| Machelen to Mealhada | 954.53 mi (1,536.16 km) |
| Machelen to Melgaco | 854.47 mi (1,375.13 km) |
| Machelen to Melres | 915.18 mi (1,472.85 km) |
| Machelen to Mira | 960.59 mi (1,545.92 km) |
| Machelen to Miranda do Corvo | 966.85 mi (1,555.99 km) |
| Machelen to Mirandela | 853.98 mi (1,374.35 km) |
| Machelen to Mogadouro | 848.45 mi (1,365.45 km) |
| Machelen to Moimenta da Beira | 895.43 mi (1,441.05 km) |
| Machelen to Moita | 1,069.22 mi (1,720.74 km) |
| Machelen to Moncao | 863.85 mi (1,390.23 km) |
| Machelen to Montalegre | 854.62 mi (1,375.38 km) |
