| Barsbuttel to Marco de Canavezes | 1,204.23 mi (1,938.02 km) |
| Barsbuttel to Marinha Grande | 1,307.78 mi (2,104.67 km) |
| Barsbuttel to Massama | 1,373.97 mi (2,211.19 km) |
| Barsbuttel to Matosinhos | 1,222.18 mi (1,966.91 km) |
| Barsbuttel to Mealhada | 1,257.47 mi (2,023.70 km) |
| Barsbuttel to Melgaco | 1,158.36 mi (1,864.19 km) |
| Barsbuttel to Melres | 1,218.64 mi (1,961.22 km) |
| Barsbuttel to Mira | 1,263.82 mi (2,033.92 km) |
| Barsbuttel to Miranda do Corvo | 1,269.38 mi (2,042.87 km) |
| Barsbuttel to Mirandela | 1,156.75 mi (1,861.60 km) |
| Barsbuttel to Mogadouro | 1,150.42 mi (1,851.42 km) |
| Barsbuttel to Moimenta da Beira | 1,198.11 mi (1,928.17 km) |
| Barsbuttel to Moita | 1,370.91 mi (2,206.27 km) |
| Barsbuttel to Moncao | 1,167.76 mi (1,879.33 km) |
| Barsbuttel to Montalegre | 1,158.20 mi (1,863.95 km) |
