The calculated distance (air line) between New Malden and Stoke-on-Trent is approximately 138 miles respectively 221 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 New Malden and Stoke-on-Trent has been calculated here.
Air line (approximately)
221 kilometers
119 nautical miles