| Nidda to Marco de Canavezes | 1,039.75 mi (1,673.32 km) |
| Nidda to Marinha Grande | 1,138.85 mi (1,832.80 km) |
| Nidda to Massama | 1,201.57 mi (1,933.74 km) |
| Nidda to Matosinhos | 1,060.58 mi (1,706.84 km) |
| Nidda to Mealhada | 1,089.67 mi (1,753.66 km) |
| Nidda to Melgaco | 1,000.87 mi (1,610.74 km) |
| Nidda to Melres | 1,054.73 mi (1,697.43 km) |
| Nidda to Mira | 1,097.75 mi (1,766.66 km) |
| Nidda to Miranda do Corvo | 1,099.39 mi (1,769.29 km) |
| Nidda to Mirandela | 989.06 mi (1,591.74 km) |
| Nidda to Mogadouro | 979.28 mi (1,575.99 km) |
| Nidda to Moimenta da Beira | 1,029.55 mi (1,656.90 km) |
| Nidda to Moita | 1,196.63 mi (1,925.79 km) |
| Nidda to Moncao | 1,011.11 mi (1,627.22 km) |
| Nidda to Montalegre | 996.06 mi (1,603.01 km) |
