The calculated distance (air line) between Barra de Carrasco and Fray Bentos is approximately 179 miles respectively 287 kilometers.
By car or train, the actual journey to Fray Bentos is certainly longer, as only the direct route (as the crow flies) between Barra de Carrasco and Fray Bentos has been calculated here.
Air line (approximately)
287 kilometers
155 nautical miles