The calculated distance (air line) between Mariano Roque Alonso and Piribebuy is approximately 35 miles respectively 57 kilometers.
By car or train, the actual journey to Piribebuy is certainly longer, as only the direct route (as the crow flies) between Mariano Roque Alonso and Piribebuy has been calculated here.
Air line (approximately)
57 kilometers
31 nautical miles