| Merthyr Tudful to Mengen | 619.42 mi (996.86 km) |
| Merthyr Tudful to Meppen | 456.01 mi (733.88 km) |
| Merthyr Tudful to Merchweiler | 486.39 mi (782.76 km) |
| Merthyr Tudful to Mering | 680.26 mi (1,094.77 km) |
| Merthyr Tudful to Merseburg | 659.74 mi (1,061.75 km) |
| Merthyr Tudful to Merzenich | 432.34 mi (695.79 km) |
| Merthyr Tudful to Merzig | 465.65 mi (749.38 km) |
| Merthyr Tudful to Meschede | 501.26 mi (806.70 km) |
| Merthyr Tudful to Messkirch | 612.59 mi (985.87 km) |
| Merthyr Tudful to Messstetten | 600.21 mi (965.94 km) |
| Merthyr Tudful to Mettingen | 475.53 mi (765.28 km) |
| Merthyr Tudful to Mettlach | 463.69 mi (746.24 km) |
| Merthyr Tudful to Mettmann | 445.90 mi (717.61 km) |
| Merthyr Tudful to Metzingen | 601.97 mi (968.78 km) |
| Merthyr Tudful to Meuselwitz | 676.25 mi (1,088.32 km) |
