The calculated distance (air line) between Ashton-under-Lyne and Milnrow is approximately 8 miles respectively 14 kilometers.
By car or train, the actual journey to Milnrow is certainly longer, as only the direct route (as the crow flies) between Ashton-under-Lyne and Milnrow has been calculated here.
Air line (approximately)
14 kilometers
7 nautical miles