The calculated distance (air line) between Merthyr Tydfil and Ebbw Vale is approximately 8 miles respectively 12 kilometers.
By car or train, the actual journey to Ebbw Vale is certainly longer, as only the direct route (as the crow flies) between Merthyr Tydfil and Ebbw Vale has been calculated here.
Air line (approximately)
12 kilometers
7 nautical miles