| Knowsley to Mangualde | 916.63 mi (1,475.18 km) |
| Knowsley to Marco de Canavezes | 882.53 mi (1,420.29 km) |
| Knowsley to Marinha Grande | 988.74 mi (1,591.22 km) |
| Knowsley to Massama | 1,059.75 mi (1,705.51 km) |
| Knowsley to Matosinhos | 889.98 mi (1,432.28 km) |
| Knowsley to Mealhada | 939.97 mi (1,512.73 km) |
| Knowsley to Melgaco | 821.83 mi (1,322.61 km) |
| Knowsley to Melres | 893.61 mi (1,438.13 km) |
| Knowsley to Mira | 940.40 mi (1,513.42 km) |
| Knowsley to Miranda do Corvo | 957.46 mi (1,540.89 km) |
| Knowsley to Mirandela | 850.66 mi (1,369.00 km) |
| Knowsley to Mogadouro | 856.15 mi (1,377.85 km) |
| Knowsley to Moimenta da Beira | 889.62 mi (1,431.71 km) |
| Knowsley to Moita | 1,063.04 mi (1,710.80 km) |
| Knowsley to Moncao | 827.74 mi (1,332.12 km) |
