The calculated distance (air line) between Sŭngho 1-tong and Kujang-ŭp is approximately 61 miles respectively 97 kilometers.
By car or train, the actual journey to Kujang-ŭp is certainly longer, as only the direct route (as the crow flies) between Sŭngho 1-tong and Kujang-ŭp has been calculated here.
Air line (approximately)
97 kilometers
53 nautical miles