The calculated distance (air line) between Balatonboglár and Erzsébetváros is approximately 84 miles respectively 135 kilometers.
By car or train, the actual journey to Erzsébetváros is certainly longer, as only the direct route (as the crow flies) between Balatonboglár and Erzsébetváros has been calculated here.
Air line (approximately)
135 kilometers
73 nautical miles