| Merthyr Tudful to Taunton (Massachusetts) | 3,153.25 mi (5,074.66 km) |
| Merthyr Tudful to Tavares (Florida) | 4,201.56 mi (6,761.76 km) |
| Merthyr Tudful to Taylor (Michigan) | 3,630.17 mi (5,842.19 km) |
| Merthyr Tudful to Taylor (Texas) | 4,753.05 mi (7,649.29 km) |
| Merthyr Tudful to Taylors (South Carolina) | 3,927.64 mi (6,320.92 km) |
| Merthyr Tudful to Taylorsville (Utah) | 4,752.01 mi (7,647.62 km) |
| Merthyr Tudful to Taylorville (Illinois) | 3,988.59 mi (6,419.01 km) |
| Merthyr Tudful to Teays Valley (West Virginia) | 3,746.79 mi (6,029.88 km) |
| Merthyr Tudful to Tega Cay (South Carolina) | 3,868.18 mi (6,225.23 km) |
| Merthyr Tudful to Tehachapi (California) | 5,271.02 mi (8,482.89 km) |
| Merthyr Tudful to Temecula (California) | 5,318.67 mi (8,559.57 km) |
| Merthyr Tudful to Temescal Valley (California) | 5,314.99 mi (8,553.65 km) |
| Merthyr Tudful to Tempe (Arizona) | 5,145.90 mi (8,281.52 km) |
| Merthyr Tudful to Temple (Texas) | 4,723.96 mi (7,602.48 km) |
| Merthyr Tudful to Temple City (California) | 5,315.19 mi (8,553.98 km) |
