| Merthyr Tudful to Torun | 927.87 mi (1,493.27 km) |
| Merthyr Tudful to Trzcianka | 838.79 mi (1,349.90 km) |
| Merthyr Tudful to Trzebiatow | 790.86 mi (1,272.77 km) |
| Merthyr Tudful to Trzebinia | 996.81 mi (1,604.21 km) |
| Merthyr Tudful to Trzebnica | 876.31 mi (1,410.29 km) |
| Merthyr Tudful to Tuchola | 895.17 mi (1,440.63 km) |
| Merthyr Tudful to Turek | 929.81 mi (1,496.38 km) |
| Merthyr Tudful to Tychy | 976.36 mi (1,571.30 km) |
| Merthyr Tudful to Ustka | 857.35 mi (1,379.77 km) |
| Merthyr Tudful to Ustron | 976.57 mi (1,571.63 km) |
| Merthyr Tudful to Ustrzyki Dolne | 1,143.97 mi (1,841.04 km) |
| Merthyr Tudful to Wabrzezno | 940.97 mi (1,514.35 km) |
| Merthyr Tudful to Wadowice | 1,002.80 mi (1,613.84 km) |
| Merthyr Tudful to Wagrowiec | 870.09 mi (1,400.27 km) |
| Merthyr Tudful to Walbrzych | 850.28 mi (1,368.39 km) |
