| Birkenau to Marco de Canavezes | 998.55 mi (1,607.01 km) |
| Birkenau to Marinha Grande | 1,095.88 mi (1,763.65 km) |
| Birkenau to Massama | 1,157.33 mi (1,862.54 km) |
| Birkenau to Matosinhos | 1,020.22 mi (1,641.88 km) |
| Birkenau to Mealhada | 1,047.22 mi (1,685.34 km) |
| Birkenau to Melgaco | 962.07 mi (1,548.31 km) |
| Birkenau to Melres | 1,013.65 mi (1,631.32 km) |
| Birkenau to Mira | 1,055.83 mi (1,699.19 km) |
| Birkenau to Miranda do Corvo | 1,056.21 mi (1,699.80 km) |
| Birkenau to Mirandela | 947.03 mi (1,524.10 km) |
| Birkenau to Mogadouro | 936.16 mi (1,506.61 km) |
| Birkenau to Moimenta da Beira | 987.07 mi (1,588.54 km) |
| Birkenau to Moita | 1,151.80 mi (1,853.65 km) |
| Birkenau to Moncao | 972.53 mi (1,565.14 km) |
| Birkenau to Montalegre | 955.80 mi (1,538.21 km) |
