| Merthyr Tudful to Pyrzyce | 773.00 mi (1,244.02 km) |
| Merthyr Tudful to Pyskowice | 956.00 mi (1,538.54 km) |
| Merthyr Tudful to Raciborz | 944.88 mi (1,520.64 km) |
| Merthyr Tudful to Radom | 1,048.86 mi (1,687.98 km) |
| Merthyr Tudful to Radomsko | 981.00 mi (1,578.77 km) |
| Merthyr Tudful to Radzionkow Nowy | 967.39 mi (1,556.87 km) |
| Merthyr Tudful to Radzymin | 1,038.94 mi (1,672.01 km) |
| Merthyr Tudful to Radzyn Podlaski | 1,106.01 mi (1,779.95 km) |
| Merthyr Tudful to Rawa Mazowiecka | 1,006.30 mi (1,619.48 km) |
| Merthyr Tudful to Rawicz | 864.26 mi (1,390.89 km) |
| Merthyr Tudful to Reda | 917.39 mi (1,476.39 km) |
| Merthyr Tudful to Rogozno | 861.95 mi (1,387.17 km) |
| Merthyr Tudful to Ropczyce | 1,090.08 mi (1,754.31 km) |
| Merthyr Tudful to Ruda Slaska | 968.20 mi (1,558.16 km) |
| Merthyr Tudful to Rumia | 919.18 mi (1,479.28 km) |
