| Hardenberg to Marco de Canavezes | 1,047.15 mi (1,685.23 km) |
| Hardenberg to Marinha Grande | 1,151.70 mi (1,853.48 km) |
| Hardenberg to Massama | 1,218.83 mi (1,961.51 km) |
| Hardenberg to Matosinhos | 1,064.27 mi (1,712.78 km) |
| Hardenberg to Mealhada | 1,101.19 mi (1,772.19 km) |
| Hardenberg to Melgaco | 999.65 mi (1,608.78 km) |
| Hardenberg to Melres | 1,061.36 mi (1,708.09 km) |
| Hardenberg to Mira | 1,107.01 mi (1,781.56 km) |
| Hardenberg to Miranda do Corvo | 1,113.76 mi (1,792.43 km) |
| Hardenberg to Mirandela | 1,000.80 mi (1,610.63 km) |
| Hardenberg to Mogadouro | 995.65 mi (1,602.34 km) |
| Hardenberg to Moimenta da Beira | 1,042.28 mi (1,677.39 km) |
| Hardenberg to Moita | 1,216.45 mi (1,957.69 km) |
| Hardenberg to Moncao | 1,008.84 mi (1,623.57 km) |
| Hardenberg to Montalegre | 1,000.65 mi (1,610.38 km) |
