The calculated distance (air line) between Yonggang-ŭp and P’yŏngsŏng is approximately 36 miles respectively 58 kilometers.
By car or train, the actual journey to P’yŏngsŏng is certainly longer, as only the direct route (as the crow flies) between Yonggang-ŭp and P’yŏngsŏng has been calculated here.
Air line (approximately)
58 kilometers
31 nautical miles