The calculated distance (air line) between Ashby-de-la-Zouch and Attleborough is approximately 16 miles respectively 26 kilometers.
By car or train, the actual journey to Attleborough is certainly longer, as only the direct route (as the crow flies) between Ashby-de-la-Zouch and Attleborough has been calculated here.
Air line (approximately)
26 kilometers
14 nautical miles