The calculated distance (air line) between Northallerton and Stoke-on-Trent is approximately 97 miles respectively 157 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 Northallerton and Stoke-on-Trent has been calculated here.
Air line (approximately)
157 kilometers
84 nautical miles