The calculated distance (air line) between Sariwŏn-si and Paek'ak is approximately 67 miles respectively 107 kilometers.
By car or train, the actual journey to Paek'ak is certainly longer, as only the direct route (as the crow flies) between Sariwŏn-si and Paek'ak has been calculated here.
Air line (approximately)
107 kilometers
58 nautical miles