The calculated distance (air line) between Panghyŏn-dong and Sinŭiju is approximately 47 miles respectively 76 kilometers.
By car or train, the actual journey to Sinŭiju is certainly longer, as only the direct route (as the crow flies) between Panghyŏn-dong and Sinŭiju has been calculated here.
Air line (approximately)
76 kilometers
41 nautical miles