| Rio Maior to Mombris | 1,152.29 mi (1,854.44 km) |
| Rio Maior to Monchengladbach | 1,104.91 mi (1,778.19 km) |
| Rio Maior to Monschau | 1,069.94 mi (1,721.91 km) |
| Rio Maior to Montabaur | 1,118.46 mi (1,799.98 km) |
| Rio Maior to Moosburg | 1,209.56 mi (1,946.60 km) |
| Rio Maior to Morbach | 1,067.63 mi (1,718.18 km) |
| Rio Maior to Morfelden-Walldorf | 1,128.18 mi (1,815.63 km) |
| Rio Maior to Morlenbach | 1,118.66 mi (1,800.31 km) |
| Rio Maior to Morsbach | 1,132.75 mi (1,822.98 km) |
| Rio Maior to Mosbach | 1,125.27 mi (1,810.95 km) |
| Rio Maior to Mosigkau | 1,330.52 mi (2,141.26 km) |
| Rio Maior to Mossingen | 1,089.28 mi (1,753.02 km) |
| Rio Maior to Much | 1,124.13 mi (1,809.11 km) |
| Rio Maior to Mucheln | 1,295.27 mi (2,084.53 km) |
| Rio Maior to Muhlacker | 1,099.10 mi (1,768.84 km) |
