| Bytom to Marco de Canavezes | 1,439.22 mi (2,316.19 km) |
| Bytom to Marinha Grande | 1,531.26 mi (2,464.33 km) |
| Bytom to Massama | 1,588.39 mi (2,556.26 km) |
| Bytom to Matosinhos | 1,462.61 mi (2,353.84 km) |
| Bytom to Mealhada | 1,484.42 mi (2,388.94 km) |
| Bytom to Melgaco | 1,407.93 mi (2,265.85 km) |
| Bytom to Melres | 1,454.49 mi (2,340.78 km) |
| Bytom to Mira | 1,494.31 mi (2,404.87 km) |
| Bytom to Miranda do Corvo | 1,491.32 mi (2,400.05 km) |
| Bytom to Mirandela | 1,386.13 mi (2,230.76 km) |
| Bytom to Mogadouro | 1,372.57 mi (2,208.93 km) |
| Bytom to Moimenta da Beira | 1,424.70 mi (2,292.83 km) |
| Bytom to Moita | 1,581.00 mi (2,544.37 km) |
| Bytom to Moncao | 1,418.73 mi (2,283.22 km) |
| Bytom to Montalegre | 1,398.83 mi (2,251.20 km) |
