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