| Oberhausen to Marco de Canavezes | 1,006.79 mi (1,620.28 km) |
| Oberhausen to Marinha Grande | 1,109.76 mi (1,785.99 km) |
| Oberhausen to Massama | 1,175.55 mi (1,891.87 km) |
| Oberhausen to Matosinhos | 1,025.30 mi (1,650.06 km) |
| Oberhausen to Mealhada | 1,059.56 mi (1,705.20 km) |
| Oberhausen to Melgaco | 962.22 mi (1,548.54 km) |
| Oberhausen to Melres | 1,021.32 mi (1,643.66 km) |
| Oberhausen to Mira | 1,066.19 mi (1,715.87 km) |
| Oberhausen to Miranda do Corvo | 1,071.18 mi (1,723.90 km) |
| Oberhausen to Mirandela | 958.74 mi (1,542.95 km) |
| Oberhausen to Mogadouro | 951.97 mi (1,532.05 km) |
| Oberhausen to Moimenta da Beira | 1,000.03 mi (1,609.40 km) |
| Oberhausen to Moita | 1,172.29 mi (1,886.62 km) |
| Oberhausen to Moncao | 971.83 mi (1,564.00 km) |
| Oberhausen to Montalegre | 961.12 mi (1,546.77 km) |
