The calculated distance (air line) between Paso de Carrasco and Fray Bentos is approximately 177 miles respectively 285 kilometers.
By car or train, the actual journey to Fray Bentos is certainly longer, as only the direct route (as the crow flies) between Paso de Carrasco and Fray Bentos has been calculated here.
Air line (approximately)
285 kilometers
154 nautical miles