| Trentham to Mangualde | 893.20 mi (1,437.47 km) |
| Trentham to Marco de Canavezes | 860.34 mi (1,384.58 km) |
| Trentham to Marinha Grande | 967.07 mi (1,556.34 km) |
| Trentham to Massama | 1,038.04 mi (1,670.56 km) |
| Trentham to Matosinhos | 868.97 mi (1,398.47 km) |
| Trentham to Mealhada | 917.79 mi (1,477.04 km) |
| Trentham to Melgaco | 800.71 mi (1,288.62 km) |
| Trentham to Melres | 871.86 mi (1,403.13 km) |
| Trentham to Mira | 918.84 mi (1,478.73 km) |
| Trentham to Miranda do Corvo | 934.85 mi (1,504.49 km) |
| Trentham to Mirandela | 826.60 mi (1,330.29 km) |
| Trentham to Mogadouro | 831.00 mi (1,337.37 km) |
| Trentham to Moimenta da Beira | 866.14 mi (1,393.92 km) |
| Trentham to Moita | 1,040.72 mi (1,674.87 km) |
| Trentham to Moncao | 807.07 mi (1,298.86 km) |
