| Merthyr Tudful to Roura | 4,281.49 mi (6,890.40 km) |
| Merthyr Tudful to Saint-Georges | 4,310.81 mi (6,937.58 km) |
| Merthyr Tudful to Saint-Laurent-du-Maroni | 4,299.39 mi (6,919.20 km) |
| Merthyr Tudful to Sinnamary | 4,266.54 mi (6,866.33 km) |
| Merthyr Tudful to Aachen | 414.22 mi (666.63 km) |
| Merthyr Tudful to Aalen | 626.95 mi (1,008.97 km) |
| Merthyr Tudful to Abensberg | 701.05 mi (1,128.24 km) |
| Merthyr Tudful to Achern | 549.24 mi (883.91 km) |
| Merthyr Tudful to Achim | 530.43 mi (853.64 km) |
| Merthyr Tudful to Adelsdorf | 638.67 mi (1,027.83 km) |
| Merthyr Tudful to Adendorf | 590.13 mi (949.72 km) |
| Merthyr Tudful to Aerzen | 538.74 mi (867.01 km) |
| Merthyr Tudful to Ahaus | 442.59 mi (712.27 km) |
| Merthyr Tudful to Ahlen | 481.53 mi (774.94 km) |
| Merthyr Tudful to Ahrensburg | 584.54 mi (940.72 km) |
