The calculated distance (air line) between Stoke-on-Trent and Whitchurch is approximately 21 miles respectively 34 kilometers.
By car or train, the actual journey to Whitchurch is certainly longer, as only the direct route (as the crow flies) between Stoke-on-Trent and Whitchurch has been calculated here.
Air line (approximately)
34 kilometers
18 nautical miles