| Merthyr Tudful to Marianske Lazne | 710.51 mi (1,143.45 km) |
| Merthyr Tudful to Melnik | 779.41 mi (1,254.35 km) |
| Merthyr Tudful to Milovice | 799.27 mi (1,286.30 km) |
| Merthyr Tudful to Mlada Boleslav | 796.80 mi (1,282.32 km) |
| Merthyr Tudful to Mnichovo Hradiste | 797.82 mi (1,283.97 km) |
| Merthyr Tudful to Mohelnice | 894.47 mi (1,439.51 km) |
| Merthyr Tudful to Moravska Trebova | 883.93 mi (1,422.55 km) |
| Merthyr Tudful to Most | 741.11 mi (1,192.69 km) |
| Merthyr Tudful to Nachod | 850.56 mi (1,368.85 km) |
| Merthyr Tudful to Neratovice | 782.82 mi (1,259.83 km) |
| Merthyr Tudful to Nova Paka | 821.59 mi (1,322.23 km) |
| Merthyr Tudful to Nove Mesto na Morave | 862.67 mi (1,388.34 km) |
| Merthyr Tudful to Nove Mesto nad Metuji | 851.27 mi (1,369.98 km) |
| Merthyr Tudful to Novy Bor | 776.58 mi (1,249.78 km) |
| Merthyr Tudful to Novy Jicin | 944.79 mi (1,520.50 km) |
