The calculated distance (air line) between Bishops Stortford and Stoke-on-Trent is approximately 126 miles respectively 203 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 Bishops Stortford and Stoke-on-Trent has been calculated here.
Air line (approximately)
203 kilometers
109 nautical miles