| Westlake to Mangualde | 3,739.33 mi (6,017.87 km) |
| Westlake to Marco de Canavezes | 3,703.13 mi (5,959.61 km) |
| Westlake to Marinha Grande | 3,711.24 mi (5,972.66 km) |
| Westlake to Massama | 3,726.70 mi (5,997.55 km) |
| Westlake to Matosinhos | 3,677.53 mi (5,918.41 km) |
| Westlake to Mealhada | 3,714.04 mi (5,977.17 km) |
| Westlake to Melgaco | 3,669.19 mi (5,904.98 km) |
| Westlake to Melres | 3,695.10 mi (5,946.68 km) |
| Westlake to Mira | 3,699.19 mi (5,953.27 km) |
| Westlake to Miranda do Corvo | 3,728.44 mi (6,000.35 km) |
| Westlake to Mirandela | 3,738.63 mi (6,016.74 km) |
| Westlake to Mogadouro | 3,764.87 mi (6,058.97 km) |
| Westlake to Moimenta da Beira | 3,734.40 mi (6,009.94 km) |
| Westlake to Moita | 3,744.05 mi (6,025.46 km) |
| Westlake to Moncao | 3,660.66 mi (5,891.26 km) |
