The calculated distance (air line) between Erdőkertes and Székesfehérvár is approximately 54 miles respectively 86 kilometers.
By car or train, the actual journey to Székesfehérvár is certainly longer, as only the direct route (as the crow flies) between Erdőkertes and Székesfehérvár has been calculated here.
Air line (approximately)
86 kilometers
47 nautical miles