| Imperial Beach to Mangualde | 5,669.21 mi (9,123.72 km) |
| Imperial Beach to Marco de Canavezes | 5,629.10 mi (9,059.16 km) |
| Imperial Beach to Marinha Grande | 5,654.29 mi (9,099.70 km) |
| Imperial Beach to Massama | 5,679.82 mi (9,140.78 km) |
| Imperial Beach to Matosinhos | 5,606.01 mi (9,021.99 km) |
| Imperial Beach to Mealhada | 5,649.14 mi (9,091.41 km) |
| Imperial Beach to Melgaco | 5,586.14 mi (8,990.03 km) |
| Imperial Beach to Melres | 5,623.37 mi (9,049.94 km) |
| Imperial Beach to Mira | 5,635.07 mi (9,068.76 km) |
| Imperial Beach to Miranda do Corvo | 5,665.68 mi (9,118.04 km) |
| Imperial Beach to Mirandela | 5,657.01 mi (9,104.08 km) |
| Imperial Beach to Mogadouro | 5,682.58 mi (9,145.23 km) |
| Imperial Beach to Moimenta da Beira | 5,659.93 mi (9,108.77 km) |
| Imperial Beach to Moita | 5,696.87 mi (9,168.22 km) |
| Imperial Beach to Moncao | 5,579.07 mi (8,978.64 km) |
