| Etterbeek to Marco de Canavezes | 895.52 mi (1,441.20 km) |
| Etterbeek to Marinha Grande | 999.56 mi (1,608.64 km) |
| Etterbeek to Massama | 1,066.32 mi (1,716.08 km) |
| Etterbeek to Matosinhos | 913.20 mi (1,469.65 km) |
| Etterbeek to Mealhada | 949.13 mi (1,527.48 km) |
| Etterbeek to Melgaco | 849.25 mi (1,366.73 km) |
| Etterbeek to Melres | 909.85 mi (1,464.27 km) |
| Etterbeek to Mira | 955.23 mi (1,537.29 km) |
| Etterbeek to Miranda do Corvo | 961.42 mi (1,547.25 km) |
| Etterbeek to Mirandela | 848.57 mi (1,365.64 km) |
| Etterbeek to Mogadouro | 842.98 mi (1,356.64 km) |
| Etterbeek to Moimenta da Beira | 890.01 mi (1,432.33 km) |
| Etterbeek to Moita | 1,063.73 mi (1,711.91 km) |
| Etterbeek to Moncao | 858.65 mi (1,381.86 km) |
| Etterbeek to Montalegre | 849.31 mi (1,366.83 km) |
