The calculated distance (air line) between Ashby-de-la-Zouch and Tamworth is approximately 12 miles respectively 20 kilometers.
By car or train, the actual journey to Tamworth is certainly longer, as only the direct route (as the crow flies) between Ashby-de-la-Zouch and Tamworth has been calculated here.
Air line (approximately)
20 kilometers
11 nautical miles