| Rheinberg to Marco de Canavezes | 1,000.04 mi (1,609.42 km) |
| Rheinberg to Marinha Grande | 1,103.30 mi (1,775.59 km) |
| Rheinberg to Massama | 1,169.33 mi (1,881.86 km) |
| Rheinberg to Matosinhos | 1,018.33 mi (1,638.84 km) |
| Rheinberg to Mealhada | 1,053.04 mi (1,694.70 km) |
| Rheinberg to Melgaco | 954.99 mi (1,536.91 km) |
| Rheinberg to Melres | 1,014.53 mi (1,632.72 km) |
| Rheinberg to Mira | 1,059.53 mi (1,705.15 km) |
| Rheinberg to Miranda do Corvo | 1,064.82 mi (1,713.66 km) |
| Rheinberg to Mirandela | 952.26 mi (1,532.52 km) |
| Rheinberg to Mogadouro | 945.77 mi (1,522.07 km) |
| Rheinberg to Moimenta da Beira | 993.60 mi (1,599.04 km) |
| Rheinberg to Moita | 1,166.23 mi (1,876.86 km) |
| Rheinberg to Moncao | 964.54 mi (1,552.28 km) |
| Rheinberg to Montalegre | 954.22 mi (1,535.67 km) |
