| Selfoss to Marco de Canavezes | 1,654.60 mi (2,662.83 km) |
| Selfoss to Marinha Grande | 1,741.64 mi (2,802.89 km) |
| Selfoss to Massama | 1,804.92 mi (2,904.74 km) |
| Selfoss to Matosinhos | 1,647.85 mi (2,651.96 km) |
| Selfoss to Mealhada | 1,704.65 mi (2,743.37 km) |
| Selfoss to Melgaco | 1,590.59 mi (2,559.81 km) |
| Selfoss to Melres | 1,659.33 mi (2,670.43 km) |
| Selfoss to Mira | 1,697.91 mi (2,732.52 km) |
| Selfoss to Miranda do Corvo | 1,725.11 mi (2,776.30 km) |
| Selfoss to Mirandela | 1,646.97 mi (2,650.55 km) |
| Selfoss to Mogadouro | 1,663.44 mi (2,677.04 km) |
| Selfoss to Moimenta da Beira | 1,675.07 mi (2,695.76 km) |
| Selfoss to Moita | 1,815.36 mi (2,921.54 km) |
| Selfoss to Moncao | 1,590.81 mi (2,560.17 km) |
| Selfoss to Montalegre | 1,616.34 mi (2,601.25 km) |
