| Barnet to Mangualde | 843.30 mi (1,357.17 km) |
| Barnet to Marco de Canavezes | 814.87 mi (1,311.41 km) |
| Barnet to Marinha Grande | 922.06 mi (1,483.92 km) |
| Barnet to Massama | 992.25 mi (1,596.87 km) |
| Barnet to Matosinhos | 827.20 mi (1,331.25 km) |
| Barnet to Mealhada | 871.69 mi (1,402.84 km) |
| Barnet to Melgaco | 759.54 mi (1,222.35 km) |
| Barnet to Melres | 827.68 mi (1,332.02 km) |
| Barnet to Mira | 874.71 mi (1,407.71 km) |
| Barnet to Miranda do Corvo | 887.14 mi (1,427.72 km) |
| Barnet to Mirandela | 775.49 mi (1,248.03 km) |
| Barnet to Mogadouro | 776.20 mi (1,249.17 km) |
| Barnet to Moimenta da Beira | 816.40 mi (1,313.87 km) |
| Barnet to Moita | 992.95 mi (1,598.00 km) |
| Barnet to Moncao | 767.23 mi (1,234.74 km) |
