The calculated distance (air line) between Pilis and Székesfehérvár is approximately 54 miles respectively 87 kilometers.
By car or train, the actual journey to Székesfehérvár is certainly longer, as only the direct route (as the crow flies) between Pilis and Székesfehérvár has been calculated here.
Air line (approximately)
87 kilometers
47 nautical miles