| Merthyr Tudful to Wetter (Ruhr) | 462.92 mi (745.00 km) |
| Merthyr Tudful to Wetzlar | 520.52 mi (837.70 km) |
| Merthyr Tudful to Weyhe | 523.35 mi (842.25 km) |
| Merthyr Tudful to Wickede | 482.17 mi (775.97 km) |
| Merthyr Tudful to Wiefelstede | 494.12 mi (795.20 km) |
| Merthyr Tudful to Wiehl | 473.62 mi (762.21 km) |
| Merthyr Tudful to Wiesbaden | 518.36 mi (834.21 km) |
| Merthyr Tudful to Wiesloch | 556.09 mi (894.94 km) |
| Merthyr Tudful to Wiesmoor | 479.89 mi (772.31 km) |
| Merthyr Tudful to Wietmarschen | 448.66 mi (722.06 km) |
| Merthyr Tudful to Wildau | 722.56 mi (1,162.85 km) |
| Merthyr Tudful to Wildberg | 577.24 mi (928.99 km) |
| Merthyr Tudful to Wildeshausen | 504.58 mi (812.05 km) |
| Merthyr Tudful to Wilhelmshaven | 496.47 mi (798.99 km) |
| Merthyr Tudful to Wilkau-Hasslau | 690.69 mi (1,111.56 km) |
