| Frohburg to Marco de Canavezes | 1,196.95 mi (1,926.31 km) |
| Frohburg to Marinha Grande | 1,294.60 mi (2,083.45 km) |
| Frohburg to Massama | 1,356.08 mi (2,182.40 km) |
| Frohburg to Matosinhos | 1,218.38 mi (1,960.80 km) |
| Frohburg to Mealhada | 1,245.88 mi (2,005.05 km) |
| Frohburg to Melgaco | 1,159.63 mi (1,866.24 km) |
| Frohburg to Melres | 1,212.03 mi (1,950.57 km) |
| Frohburg to Mira | 1,254.40 mi (2,018.76 km) |
| Frohburg to Miranda do Corvo | 1,254.94 mi (2,019.63 km) |
| Frohburg to Mirandela | 1,145.61 mi (1,843.68 km) |
| Frohburg to Mogadouro | 1,134.88 mi (1,826.42 km) |
| Frohburg to Moimenta da Beira | 1,185.72 mi (1,908.24 km) |
| Frohburg to Moita | 1,350.51 mi (2,173.44 km) |
| Frohburg to Moncao | 1,169.99 mi (1,882.92 km) |
| Frohburg to Montalegre | 1,153.92 mi (1,857.05 km) |
