| Birstonas to Marco de Canavezes | 1,732.41 mi (2,788.04 km) |
| Birstonas to Marinha Grande | 1,830.96 mi (2,946.65 km) |
| Birstonas to Massama | 1,892.83 mi (3,046.21 km) |
| Birstonas to Matosinhos | 1,753.26 mi (2,821.60 km) |
| Birstonas to Mealhada | 1,782.01 mi (2,867.87 km) |
| Birstonas to Melgaco | 1,693.25 mi (2,725.02 km) |
| Birstonas to Melres | 1,747.40 mi (2,812.17 km) |
| Birstonas to Mira | 1,790.27 mi (2,881.17 km) |
| Birstonas to Miranda do Corvo | 1,791.38 mi (2,882.95 km) |
| Birstonas to Mirandela | 1,681.53 mi (2,706.16 km) |
| Birstonas to Mogadouro | 1,671.28 mi (2,689.67 km) |
| Birstonas to Moimenta da Beira | 1,721.87 mi (2,771.08 km) |
| Birstonas to Moita | 1,887.34 mi (3,037.38 km) |
| Birstonas to Moncao | 1,703.40 mi (2,741.36 km) |
| Birstonas to Montalegre | 1,688.74 mi (2,717.77 km) |
