| Merthyr Tudful to Medvode | 892.44 mi (1,436.24 km) |
| Merthyr Tudful to Menges | 897.76 mi (1,444.81 km) |
| Merthyr Tudful to Metlika | 947.23 mi (1,524.42 km) |
| Merthyr Tudful to Mezica | 896.62 mi (1,442.97 km) |
| Merthyr Tudful to Miklavz na Dravskem Polju | 931.93 mi (1,499.80 km) |
| Merthyr Tudful to Miren | 869.05 mi (1,398.60 km) |
| Merthyr Tudful to Mirna | 925.90 mi (1,490.10 km) |
| Merthyr Tudful to Mirna Pec | 930.08 mi (1,496.83 km) |
| Merthyr Tudful to Mislinja | 913.26 mi (1,469.75 km) |
| Merthyr Tudful to Mokronog | 929.44 mi (1,495.79 km) |
| Merthyr Tudful to Moravce | 905.90 mi (1,457.90 km) |
| Merthyr Tudful to Moravske-Toplice | 947.50 mi (1,524.86 km) |
| Merthyr Tudful to Mozirje | 907.30 mi (1,460.15 km) |
| Merthyr Tudful to Murska Sobota | 945.82 mi (1,522.15 km) |
| Merthyr Tudful to Muta | 906.16 mi (1,458.33 km) |
