The calculated distance (air line) between Stoke-on-Trent and Runcorn is approximately 32 miles respectively 52 kilometers.
By car or train, the actual journey to Runcorn is certainly longer, as only the direct route (as the crow flies) between Stoke-on-Trent and Runcorn has been calculated here.
Air line (approximately)
52 kilometers
28 nautical miles