| Duchcov to Marco de Canavezes | 1,230.83 mi (1,980.83 km) |
| Duchcov to Marinha Grande | 1,326.57 mi (2,134.90 km) |
| Duchcov to Massama | 1,386.60 mi (2,231.52 km) |
| Duchcov to Matosinhos | 1,253.03 mi (2,016.55 km) |
| Duchcov to Mealhada | 1,278.45 mi (2,057.47 km) |
| Duchcov to Melgaco | 1,195.76 mi (1,924.39 km) |
| Duchcov to Melres | 1,246.00 mi (2,005.24 km) |
| Duchcov to Mira | 1,287.49 mi (2,072.01 km) |
| Duchcov to Miranda do Corvo | 1,286.75 mi (2,070.82 km) |
| Duchcov to Mirandela | 1,178.75 mi (1,897.02 km) |
| Duchcov to Mogadouro | 1,166.96 mi (1,878.05 km) |
| Duchcov to Moimenta da Beira | 1,218.36 mi (1,960.77 km) |
| Duchcov to Moita | 1,380.39 mi (2,221.53 km) |
| Duchcov to Moncao | 1,206.31 mi (1,941.36 km) |
| Duchcov to Montalegre | 1,188.73 mi (1,913.08 km) |
