The calculated distance (air line) between Balatonfüred and Székesfehérvár is approximately 30 miles respectively 48 kilometers.
By car or train, the actual journey to Székesfehérvár is certainly longer, as only the direct route (as the crow flies) between Balatonfüred and Székesfehérvár has been calculated here.
Air line (approximately)
48 kilometers
26 nautical miles