| Osterode to Marco de Canavezes | 1,133.70 mi (1,824.52 km) |
| Osterode to Marinha Grande | 1,234.43 mi (1,986.62 km) |
| Osterode to Massama | 1,298.33 mi (2,089.46 km) |
| Osterode to Matosinhos | 1,153.61 mi (1,856.56 km) |
| Osterode to Mealhada | 1,184.80 mi (1,906.75 km) |
| Osterode to Melgaco | 1,092.36 mi (1,757.99 km) |
| Osterode to Melres | 1,148.52 mi (1,848.37 km) |
| Osterode to Mira | 1,192.34 mi (1,918.88 km) |
| Osterode to Miranda do Corvo | 1,195.24 mi (1,923.55 km) |
| Osterode to Mirandela | 1,083.96 mi (1,744.46 km) |
| Osterode to Mogadouro | 1,075.27 mi (1,730.48 km) |
| Osterode to Moimenta da Beira | 1,124.81 mi (1,810.21 km) |
| Osterode to Moita | 1,293.96 mi (2,082.42 km) |
| Osterode to Moncao | 1,102.34 mi (1,774.05 km) |
| Osterode to Montalegre | 1,089.13 mi (1,752.79 km) |
