| Rainham to Mangualde | 843.60 mi (1,357.64 km) |
| Rainham to Marco de Canavezes | 816.88 mi (1,314.65 km) |
| Rainham to Marinha Grande | 923.80 mi (1,486.70 km) |
| Rainham to Massama | 993.46 mi (1,598.83 km) |
| Rainham to Matosinhos | 830.46 mi (1,336.50 km) |
| Rainham to Mealhada | 873.22 mi (1,405.32 km) |
| Rainham to Melgaco | 763.33 mi (1,228.47 km) |
| Rainham to Melres | 830.08 mi (1,335.89 km) |
| Rainham to Mira | 876.94 mi (1,411.29 km) |
| Rainham to Miranda do Corvo | 888.05 mi (1,429.18 km) |
| Rainham to Mirandela | 775.65 mi (1,248.29 km) |
| Rainham to Mogadouro | 775.00 mi (1,247.24 km) |
| Rainham to Moimenta da Beira | 816.87 mi (1,314.63 km) |
| Rainham to Moita | 993.46 mi (1,598.81 km) |
| Rainham to Moncao | 771.45 mi (1,241.54 km) |
