| Merthyr Tudful to Teruel | 794.88 mi (1,279.23 km) |
| Merthyr Tudful to Teulada | 914.69 mi (1,472.05 km) |
| Merthyr Tudful to Tiana | 757.30 mi (1,218.76 km) |
| Merthyr Tudful to Tineo | 600.39 mi (966.24 km) |
| Merthyr Tudful to Tocina | 983.88 mi (1,583.40 km) |
| Merthyr Tudful to Toledo | 821.84 mi (1,322.63 km) |
| Merthyr Tudful to Tolosa | 597.92 mi (962.25 km) |
| Merthyr Tudful to Tomares | 1,001.11 mi (1,611.13 km) |
| Merthyr Tudful to Tomelloso | 869.72 mi (1,399.68 km) |
| Merthyr Tudful to Tomino | 719.46 mi (1,157.86 km) |
| Merthyr Tudful to Tordera | 750.92 mi (1,208.48 km) |
| Merthyr Tudful to Tordesillas | 711.85 mi (1,145.61 km) |
| Merthyr Tudful to Torello | 720.24 mi (1,159.12 km) |
| Merthyr Tudful to Toro | 712.72 mi (1,147.01 km) |
| Merthyr Tudful to Torre del Campo | 965.98 mi (1,554.60 km) |
