| Buchs to Mangualde | 967.41 mi (1,556.89 km) |
| Buchs to Marco de Canavezes | 963.04 mi (1,549.86 km) |
| Buchs to Marinha Grande | 1,051.82 mi (1,692.74 km) |
| Buchs to Massama | 1,107.29 mi (1,782.01 km) |
| Buchs to Matosinhos | 987.53 mi (1,589.28 km) |
| Buchs to Mealhada | 1,005.99 mi (1,618.99 km) |
| Buchs to Melgaco | 936.39 mi (1,506.98 km) |
| Buchs to Melres | 978.34 mi (1,574.49 km) |
| Buchs to Mira | 1,016.52 mi (1,635.93 km) |
| Buchs to Miranda do Corvo | 1,011.91 mi (1,628.50 km) |
| Buchs to Mirandela | 909.27 mi (1,463.32 km) |
| Buchs to Mogadouro | 894.28 mi (1,439.21 km) |
| Buchs to Moimenta da Beira | 946.77 mi (1,523.68 km) |
| Buchs to Moita | 1,099.45 mi (1,769.39 km) |
| Buchs to Moncao | 947.46 mi (1,524.79 km) |
