The calculated distance (air line) between Swadlincote and Sutton Coldfield is approximately 18 miles respectively 29 kilometers.
By car or train, the actual journey to Sutton Coldfield is certainly longer, as only the direct route (as the crow flies) between Swadlincote and Sutton Coldfield has been calculated here.
Air line (approximately)
29 kilometers
16 nautical miles