| Zwonitz to Marco de Canavezes | 1,193.35 mi (1,920.51 km) |
| Zwonitz to Marinha Grande | 1,289.80 mi (2,075.73 km) |
| Zwonitz to Massama | 1,350.40 mi (2,173.25 km) |
| Zwonitz to Matosinhos | 1,215.28 mi (1,955.80 km) |
| Zwonitz to Mealhada | 1,241.45 mi (1,997.92 km) |
| Zwonitz to Melgaco | 1,157.50 mi (1,862.81 km) |
| Zwonitz to Melres | 1,208.49 mi (1,944.87 km) |
| Zwonitz to Mira | 1,250.30 mi (2,012.16 km) |
| Zwonitz to Miranda do Corvo | 1,250.03 mi (2,011.73 km) |
| Zwonitz to Mirandela | 1,141.52 mi (1,837.10 km) |
| Zwonitz to Mogadouro | 1,130.12 mi (1,818.75 km) |
| Zwonitz to Moimenta da Beira | 1,181.33 mi (1,901.16 km) |
| Zwonitz to Moita | 1,344.44 mi (2,163.66 km) |
| Zwonitz to Moncao | 1,167.99 mi (1,879.69 km) |
| Zwonitz to Montalegre | 1,150.91 mi (1,852.21 km) |
