| Iserlohn to Marco de Canavezes | 1,028.94 mi (1,655.92 km) |
| Iserlohn to Marinha Grande | 1,131.08 mi (1,820.30 km) |
| Iserlohn to Massama | 1,196.19 mi (1,925.08 km) |
| Iserlohn to Matosinhos | 1,048.02 mi (1,686.62 km) |
| Iserlohn to Mealhada | 1,081.08 mi (1,739.83 km) |
| Iserlohn to Melgaco | 985.66 mi (1,586.26 km) |
| Iserlohn to Melres | 1,043.59 mi (1,679.50 km) |
| Iserlohn to Mira | 1,088.07 mi (1,751.08 km) |
| Iserlohn to Miranda do Corvo | 1,092.25 mi (1,757.81 km) |
| Iserlohn to Mirandela | 980.19 mi (1,577.47 km) |
| Iserlohn to Mogadouro | 972.68 mi (1,565.37 km) |
| Iserlohn to Moimenta da Beira | 1,021.34 mi (1,643.68 km) |
| Iserlohn to Moita | 1,192.52 mi (1,919.17 km) |
| Iserlohn to Moncao | 995.43 mi (1,601.98 km) |
| Iserlohn to Montalegre | 983.68 mi (1,583.08 km) |
