| Chelm to Marco de Canavezes | 1,645.83 mi (2,648.71 km) |
| Chelm to Marinha Grande | 1,737.91 mi (2,796.89 km) |
| Chelm to Massama | 1,794.88 mi (2,888.59 km) |
| Chelm to Matosinhos | 1,669.16 mi (2,686.26 km) |
| Chelm to Mealhada | 1,691.09 mi (2,721.54 km) |
| Chelm to Melgaco | 1,614.23 mi (2,597.85 km) |
| Chelm to Melres | 1,661.10 mi (2,673.29 km) |
| Chelm to Mira | 1,700.98 mi (2,737.46 km) |
| Chelm to Miranda do Corvo | 1,697.96 mi (2,732.61 km) |
| Chelm to Mirandela | 1,592.78 mi (2,563.33 km) |
| Chelm to Mogadouro | 1,579.23 mi (2,541.53 km) |
| Chelm to Moimenta da Beira | 1,631.36 mi (2,625.42 km) |
| Chelm to Moita | 1,787.40 mi (2,876.55 km) |
| Chelm to Moncao | 1,625.00 mi (2,615.18 km) |
| Chelm to Montalegre | 1,605.34 mi (2,583.54 km) |
