| Merthyr Tudful to Thorigny-sur-Marne | 333.38 mi (536.53 km) |
| Merthyr Tudful to Thouare-sur-Loire | 321.12 mi (516.79 km) |
| Merthyr Tudful to Thouars | 358.78 mi (577.40 km) |
| Merthyr Tudful to Tinqueux | 366.59 mi (589.97 km) |
| Merthyr Tudful to Tomblaine | 473.21 mi (761.55 km) |
| Merthyr Tudful to Tonneins | 535.64 mi (862.02 km) |
| Merthyr Tudful to Torcy | 332.62 mi (535.30 km) |
| Merthyr Tudful to Toul | 461.00 mi (741.91 km) |
| Merthyr Tudful to Toulon | 736.15 mi (1,184.71 km) |
| Merthyr Tudful to Toulouse | 605.08 mi (973.78 km) |
| Merthyr Tudful to Tourcoing | 291.42 mi (469.00 km) |
| Merthyr Tudful to Tourlaville | 165.21 mi (265.88 km) |
| Merthyr Tudful to Tournan-en-Brie | 341.56 mi (549.68 km) |
| Merthyr Tudful to Tournefeuille | 604.64 mi (973.07 km) |
| Merthyr Tudful to Tournon-sur-Rhone | 594.71 mi (957.10 km) |
