The calculated distance (air line) between Piriápolis and Paso de los Toros is approximately 158 miles respectively 255 kilometers.
By car or train, the actual journey to Paso de los Toros is certainly longer, as only the direct route (as the crow flies) between Piriápolis and Paso de los Toros has been calculated here.
Air line (approximately)
255 kilometers
137 nautical miles