| Mexborough to Mangualde | 940.74 mi (1,513.98 km) |
| Mexborough to Marco de Canavezes | 908.63 mi (1,462.29 km) |
| Mexborough to Marinha Grande | 1,015.56 mi (1,634.39 km) |
| Mexborough to Massama | 1,086.48 mi (1,748.51 km) |
| Mexborough to Matosinhos | 917.88 mi (1,477.18 km) |
| Mexborough to Mealhada | 966.04 mi (1,554.70 km) |
| Mexborough to Melgaco | 849.62 mi (1,367.33 km) |
| Mexborough to Melres | 920.38 mi (1,481.22 km) |
| Mexborough to Mira | 967.43 mi (1,556.92 km) |
| Mexborough to Miranda do Corvo | 982.84 mi (1,581.73 km) |
| Mexborough to Mirandela | 873.82 mi (1,406.28 km) |
| Mexborough to Mogadouro | 877.49 mi (1,412.18 km) |
| Mexborough to Moimenta da Beira | 913.68 mi (1,470.42 km) |
| Mexborough to Moita | 1,088.81 mi (1,752.27 km) |
| Mexborough to Moncao | 856.19 mi (1,377.91 km) |
