| Debno to Marco de Canavezes | 1,331.27 mi (2,142.47 km) |
| Debno to Marinha Grande | 1,430.84 mi (2,302.72 km) |
| Debno to Massama | 1,493.71 mi (2,403.90 km) |
| Debno to Matosinhos | 1,351.73 mi (2,175.39 km) |
| Debno to Mealhada | 1,381.56 mi (2,223.40 km) |
| Debno to Melgaco | 1,291.22 mi (2,078.01 km) |
| Debno to Melres | 1,346.19 mi (2,166.48 km) |
| Debno to Mira | 1,389.49 mi (2,236.17 km) |
| Debno to Miranda do Corvo | 1,391.43 mi (2,239.28 km) |
| Debno to Mirandela | 1,280.87 mi (2,061.36 km) |
| Debno to Mogadouro | 1,271.32 mi (2,046.00 km) |
| Debno to Moimenta da Beira | 1,321.46 mi (2,126.68 km) |
| Debno to Moita | 1,488.77 mi (2,395.94 km) |
| Debno to Moncao | 1,301.31 mi (2,094.26 km) |
| Debno to Montalegre | 1,287.21 mi (2,071.56 km) |
