| Merthyr Tudful to Aleksandrow Lodzki | 965.64 mi (1,554.05 km) |
| Merthyr Tudful to Andrychow | 996.56 mi (1,603.81 km) |
| Merthyr Tudful to Augustow | 1,104.22 mi (1,777.07 km) |
| Merthyr Tudful to Banino | 918.81 mi (1,478.69 km) |
| Merthyr Tudful to Barlinek | 786.25 mi (1,265.35 km) |
| Merthyr Tudful to Bartoszyce | 1,015.04 mi (1,633.55 km) |
| Merthyr Tudful to Bedzin | 978.22 mi (1,574.29 km) |
| Merthyr Tudful to Belchatow | 973.49 mi (1,566.68 km) |
| Merthyr Tudful to Biala Podlaska | 1,123.75 mi (1,808.50 km) |
| Merthyr Tudful to Bialogard | 819.66 mi (1,319.11 km) |
| Merthyr Tudful to Bialy Kamien | 848.81 mi (1,366.03 km) |
| Merthyr Tudful to Bialystok | 1,114.85 mi (1,794.17 km) |
| Merthyr Tudful to Bielawa | 865.51 mi (1,392.90 km) |
| Merthyr Tudful to Bielsk Podlaski | 1,119.93 mi (1,802.36 km) |
| Merthyr Tudful to Bielsko-Biala | 984.49 mi (1,584.38 km) |
