| Frimley to Mangualde | 812.34 mi (1,307.33 km) |
| Frimley to Marco de Canavezes | 783.51 mi (1,260.93 km) |
| Frimley to Marinha Grande | 890.73 mi (1,433.49 km) |
| Frimley to Massama | 961.02 mi (1,546.60 km) |
| Frimley to Matosinhos | 795.57 mi (1,280.35 km) |
| Frimley to Mealhada | 840.41 mi (1,352.51 km) |
| Frimley to Melgaco | 727.83 mi (1,171.32 km) |
| Frimley to Melres | 796.22 mi (1,281.40 km) |
| Frimley to Mira | 843.28 mi (1,357.13 km) |
| Frimley to Miranda do Corvo | 856.01 mi (1,377.62 km) |
| Frimley to Mirandela | 744.58 mi (1,198.29 km) |
| Frimley to Mogadouro | 745.66 mi (1,200.03 km) |
| Frimley to Moimenta da Beira | 785.40 mi (1,263.98 km) |
| Frimley to Moita | 961.88 mi (1,548.00 km) |
| Frimley to Moncao | 735.44 mi (1,183.58 km) |
