| Eltham to Mangualde | 836.81 mi (1,346.72 km) |
| Eltham to Marco de Canavezes | 809.07 mi (1,302.07 km) |
| Eltham to Marinha Grande | 916.17 mi (1,474.43 km) |
| Eltham to Massama | 986.16 mi (1,587.08 km) |
| Eltham to Matosinhos | 821.91 mi (1,322.74 km) |
| Eltham to Mealhada | 865.70 mi (1,393.22 km) |
| Eltham to Melgaco | 754.45 mi (1,214.17 km) |
| Eltham to Melres | 822.04 mi (1,322.94 km) |
| Eltham to Mira | 869.01 mi (1,398.54 km) |
| Eltham to Miranda do Corvo | 880.91 mi (1,417.69 km) |
| Eltham to Mirandela | 768.92 mi (1,237.46 km) |
| Eltham to Mogadouro | 769.10 mi (1,237.74 km) |
| Eltham to Moimenta da Beira | 809.97 mi (1,303.53 km) |
| Eltham to Moita | 986.58 mi (1,587.74 km) |
| Eltham to Moncao | 762.32 mi (1,226.84 km) |
