The calculated distance (air line) between Steyning and Stoke-on-Trent is approximately 166 miles respectively 268 kilometers.
By car or train, the actual journey to Stoke-on-Trent is certainly longer, as only the direct route (as the crow flies) between Steyning and Stoke-on-Trent has been calculated here.
Air line (approximately)
268 kilometers
144 nautical miles